diff --git a/cmd/data/country.csv b/cmd/data/country.csv
new file mode 100644
index 0000000..9a8278e
--- /dev/null
+++ b/cmd/data/country.csv
@@ -0,0 +1,245 @@
+Place,Latitude,Longitude
+Afghanistan,33.0,65.0
+Albania,41.0,20.0
+Algeria,28.0,3.0
+American Samoa,-14.3333,-170.0
+Andorra,42.5,1.6
+Angola,-12.5,18.5
+Anguilla,18.25,-63.1667
+Antarctica,-90.0,0.0
+Antigua and Barbuda,17.05,-61.8
+Argentina,-34.0,-64.0
+Armenia,40.0,45.0
+Aruba,12.5,-69.9667
+Australia,-27.0,133.0
+Austria,47.3333,13.3333
+Azerbaijan,40.5,47.5
+Bahamas,24.25,-76.0
+Bahrain,26.0,50.55
+Bangladesh,24.0,90.0
+Barbados,13.1667,-59.5333
+Belarus,53.0,28.0
+Belgium,50.8333,4.0
+Belize,17.25,-88.75
+Benin,9.5,2.25
+Bermuda,32.3333,-64.75
+Bhutan,27.5,90.5
+Bolivia,-17.0,-65.0
+Bosnia and Herzegovina,44.0,18.0
+Botswana,-22.0,24.0
+Bouvet Island,-54.4333,3.4
+Brazil,-10.0,-55.0
+British Indian Ocean Territory,-6.0,71.5
+Brunei Darussalam,4.5,114.6667
+Bulgaria,43.0,25.0
+Burkina Faso,13.0,-2.0
+Burundi,-3.5,30.0
+Cambodia,13.0,105.0
+Cameroon,6.0,12.0
+Canada,60.0,-95.0
+Cape Verde,16.0,-24.0
+Cayman Islands,19.5,-80.5
+Central African Republic,7.0,21.0
+Chad,15.0,19.0
+Chile,-30.0,-71.0
+China,35.0,105.0
+Christmas Island,-10.5,105.6667
+Cocos (Keeling) Islands,-12.5,96.8333
+Colombia,4.0,-72.0
+Comoros,-12.1667,44.25
+Congo,-1.0,15.0
+Congo,0.0,25.0
+Cook Islands,-21.2333,-159.7667
+Costa Rica,10.0,-84.0
+Côte d'Ivoire,8.0,-5.0
+Croatia,45.1667,15.5
+Cuba,21.5,-80.0
+Cyprus,35.0,33.0
+Czech Republic,49.75,15.5
+Denmark,56.0,10.0
+Djibouti,11.5,43.0
+Dominica,15.4167,-61.3333
+Dominican Republic,19.0,-70.6667
+Ecuador,-2.0,-77.5
+Egypt,27.0,30.0
+El Salvador,13.8333,-88.9167
+Equatorial Guinea,2.0,10.0
+Eritrea,15.0,39.0
+Estonia,59.0,26.0
+Ethiopia,8.0,38.0
+Falkland Islands (Malvinas),-51.75,-59.0
+Faroe Islands,62.0,-7.0
+Fiji,-18.0,175.0
+Finland,64.0,26.0
+France,46.0,2.0
+French Guiana,4.0,-53.0
+French Polynesia,-15.0,-140.0
+French Southern Territories,-43.0,67.0
+Gabon,-1.0,11.75
+Gambia,13.4667,-16.5667
+Georgia,42.0,43.5
+Germany,51.0,9.0
+Ghana,8.0,-2.0
+Gibraltar,36.1833,-5.3667
+Greece,39.0,22.0
+Greenland,72.0,-40.0
+Grenada,12.1167,-61.6667
+Guadeloupe,16.25,-61.5833
+Guam,13.4667,144.7833
+Guatemala,15.5,-90.25
+Guernsey,49.5,-2.56
+Guinea,11.0,-10.0
+Guinea-Bissau,12.0,-15.0
+Guyana,5.0,-59.0
+Haiti,19.0,-72.4167
+Heard Island and McDonald Islands,-53.1,72.5167
+Holy See (Vatican City State),41.9,12.45
+Honduras,15.0,-86.5
+Hong Kong,22.25,114.1667
+Hungary,47.0,20.0
+Iceland,65.0,-18.0
+India,20.0,77.0
+Indonesia,-5.0,120.0
+Iran,32.0,53.0
+Iraq,33.0,44.0
+Ireland,53.0,-8.0
+Isle of Man,54.23,-4.55
+Israel,31.5,34.75
+Italy,42.8333,12.8333
+Jamaica,18.25,-77.5
+Japan,36.0,138.0
+Jersey,49.21,-2.13
+Jordan,31.0,36.0
+Kazakhstan,48.0,68.0
+Kenya,1.0,38.0
+Kiribati,1.4167,173.0
+Korea,40.0,127.0
+Korea,37.0,127.5
+Kuwait,29.3375,47.6581
+Kyrgyzstan,41.0,75.0
+Lao People's Democratic Republic,18.0,105.0
+Latvia,57.0,25.0
+Lebanon,33.8333,35.8333
+Lesotho,-29.5,28.5
+Liberia,6.5,-9.5
+Libyan Arab Jamahiriya,25.0,17.0
+Liechtenstein,47.1667,9.5333
+Lithuania,56.0,24.0
+Luxembourg,49.75,6.1667
+Macao,22.1667,113.55
+Macedonia,41.8333,22.0
+Madagascar,-20.0,47.0
+Malawi,-13.5,34.0
+Malaysia,2.5,112.5
+Maldives,3.25,73.0
+Mali,17.0,-4.0
+Malta,35.8333,14.5833
+Marshall Islands,9.0,168.0
+Martinique,14.6667,-61.0
+Mauritania,20.0,-12.0
+Mauritius,-20.2833,57.55
+Mayotte,-12.8333,45.1667
+Mexico,23.0,-102.0
+Micronesia,6.9167,158.25
+Moldova,47.0,29.0
+Monaco,43.7333,7.4
+Mongolia,46.0,105.0
+Montenegro,42.0,19.0
+Montserrat,16.75,-62.2
+Morocco,32.0,-5.0
+Mozambique,-18.25,35.0
+Myanmar,22.0,98.0
+Namibia,-22.0,17.0
+Nauru,-0.5333,166.9167
+Nepal,28.0,84.0
+Netherlands,52.5,5.75
+Netherlands Antilles,12.25,-68.75
+New Caledonia,-21.5,165.5
+New Zealand,-41.0,174.0
+Nicaragua,13.0,-85.0
+Niger,16.0,8.0
+Nigeria,10.0,8.0
+Niue,-19.0333,-169.8667
+Norfolk Island,-29.0333,167.95
+Northern Mariana Islands,15.2,145.75
+Norway,62.0,10.0
+Oman,21.0,57.0
+Pakistan,30.0,70.0
+Palau,7.5,134.5
+Palestinian Territory,32.0,35.25
+Panama,9.0,-80.0
+Papua New Guinea,-6.0,147.0
+Paraguay,-23.0,-58.0
+Peru,-10.0,-76.0
+Philippines,13.0,122.0
+Pitcairn,-24.7,-127.4
+Poland,52.0,20.0
+Portugal,39.5,-8.0
+Puerto Rico,18.25,-66.5
+Qatar,25.5,51.25
+Réunion,-21.1,55.6
+Romania,46.0,25.0
+Russian Federation,60.0,100.0
+Rwanda,-2.0,30.0
+Saint Helena,-15.9333,-5.7
+Saint Kitts and Nevis,17.3333,-62.75
+Saint Lucia,13.8833,-61.1333
+Saint Pierre and Miquelon,46.8333,-56.3333
+Saint Vincent and the Grenadines,13.25,-61.2
+Samoa,-13.5833,-172.3333
+San Marino,43.7667,12.4167
+Sao Tome and Principe,1.0,7.0
+Saudi Arabia,25.0,45.0
+Senegal,14.0,-14.0
+Serbia,44.0,21.0
+Seychelles,-4.5833,55.6667
+Sierra Leone,8.5,-11.5
+Singapore,1.3667,103.8
+Slovakia,48.6667,19.5
+Slovenia,46.0,15.0
+Solomon Islands,-8.0,159.0
+Somalia,10.0,49.0
+South Africa,-29.0,24.0
+South Georgia and the South Sandwich Islands,-54.5,-37.0
+South Sudan,8.0,30.0
+Spain,40.0,-4.0
+Sri Lanka,7.0,81.0
+Sudan,15.0,30.0
+Suriname,4.0,-56.0
+Svalbard and Jan Mayen,78.0,20.0
+Swaziland,-26.5,31.5
+Sweden,62.0,15.0
+Switzerland,47.0,8.0
+Syrian Arab Republic,35.0,38.0
+Taiwan,23.5,121.0
+Tajikistan,39.0,71.0
+Tanzania,-6.0,35.0
+Thailand,15.0,100.0
+Timor-Leste,-8.55,125.5167
+Togo,8.0,1.1667
+Tokelau,-9.0,-172.0
+Tonga,-20.0,-175.0
+Trinidad and Tobago,11.0,-61.0
+Tunisia,34.0,9.0
+Turkey,39.0,35.0
+Turkmenistan,40.0,60.0
+Turks and Caicos Islands,21.75,-71.5833
+Tuvalu,-8.0,178.0
+Uganda,1.0,32.0
+Ukraine,49.0,32.0
+United Arab Emirates,24.0,54.0
+United Kingdom,54.0,-2.0
+United States,38.0,-97.0
+United States Minor Outlying Islands,19.2833,166.6
+Uruguay,-33.0,-56.0
+Uzbekistan,41.0,64.0
+Vanuatu,-16.0,167.0
+Venezuela,8.0,-66.0
+Viet Nam,16.0,106.0
+Virgin Islands British,18.5,-64.5
+Virgin Islands U.S.,18.3333,-64.8333
+Wallis and Futuna,-13.3,-176.2
+Western Sahara,24.5,-13.0
+Yemen,15.0,48.0
+Zambia,-15.0,30.0
+Zimbabwe,-20.0,30.0
\ No newline at end of file
diff --git a/cmd/data/thailand_province.csv b/cmd/data/thailand_province.csv
new file mode 100644
index 0000000..eed2696
--- /dev/null
+++ b/cmd/data/thailand_province.csv
@@ -0,0 +1,78 @@
+Place,Latitude,Longitude
+กรุงเทพมหานคร,13.7278956,100.52412349999997
+กระบี่,8.0862997,98.90628349999997
+กาญจนบุรี,14.0227797,99.53281149999998
+กาฬสินธุ์,16.4314078,103.5058755
+กำแพงเพชร,16.4827798,99.52266179999992
+ขอนแก่น,16.4419355,102.8359921
+จันทบุรี,12.61134,102.10385459999998
+ฉะเชิงเทรา,13.6904194,101.07795959999999
+ชลบุรี,13.3611431,100.98467170000004
+ชัยนาท,15.1851971,100.12512500000003
+ชัยภูมิ,15.8068173,102.03150270000003
+ชุมพร,10.4930496,99.18001989999993
+เชียงราย,19.9071656,99.83095500000002
+เชียงใหม่,18.7877477,98.99313110000003
+ตรัง,7.5593851,99.61100650000003
+ตราด,12.2427563,102.51747339999997
+ตาก,16.8839901,99.12584979999997
+นครนายก,14.2069466,101.21305110000003
+นครปฐม,13.8199206,100.06216760000007
+นครพนม,17.392039,104.76955079999993
+นคราชสีมา,14.9798997,102.09776929999998
+นครศรีธรรมราช,8.4303975,99.96312190000003
+นครสวรรค์,15.6930072,100.12255949999997
+นนทบุรี,13.8621125,100.51435279999998
+นราธิวาส,6.4254607,101.82531429999995
+น่าน,18.7756318,100.77304170000002
+บุรีรัมย์,14.9930017,103.10291910000001
+ปทุมธานี,14.0208391,100.52502759999993
+ประจวบคีรีขันธ์,11.812367,99.79732709999996
+ปราจีนบุรี,14.0509704,101.37274389999993
+ปัตตานี,6.869484399999999,101.25048259999994
+พระนครศรีอยุธยา,14.3532128,100.56895989999998
+พะเยา,19.1664789,99.9019419
+พังงา,8.4407456,98.51930319999997
+พัทลุง,7.6166823,100.07402309999998
+พิจิตร,16.4429516,100.34823289999997
+พิษณุโลก,16.8298048,100.26149150000003
+เพชรบุรี,13.1111601,99.93913069999996
+เพชรบูรณ์,16.4189807,101.15509259999999
+แพร่,18.1445774,100.14028310000003
+ภูเก็ต,7.9810496,98.36388239999997
+มหาสารคาม,16.1850896,103.30264609999995
+มุกดาหาร,16.542443,104.72091509999996
+แม่ฮ่องสอน,19.2990643,97.96562259999996
+ยโสธร,15.792641,104.14528270000005
+ยะลา,6.541147,101.28039469999999
+ร้อยเอ็ด,16.0538196,103.65200359999994
+ระนอง,9.9528702,98.60846409999999
+ระยอง,12.6833115,101.23742949999996
+ราชบุรี,13.5282893,99.81342110000003
+ลพบุรี,14.7995081,100.65337060000002
+ลำปาง,18.2888404,99.49087399999996
+ลำพูน,18.5744606,99.0087221
+เลย,17.4860232,101.72230020000006
+ศรีสะเกษ,15.1186009,104.32200949999992
+สกลนคร,17.1545995,104.1348365
+สงขลา,7.1756004,100.61434699999995
+สตูล,6.6238158,100.06737440000006
+สมุทรปราการ,13.5990961,100.59983190000003
+สมุทรสงคราม,13.4098217,100.00226450000002
+สมุทรสาคร,13.5475216,100.27439559999993
+สระแก้ว,13.824038,102.0645839
+สระบุรี,14.5289154,100.91014210000003
+สิงห์บุรี,14.8936253,100.39673140000002
+สุโขทัย,17.0055573,99.82637120000004
+สุพรรณบุรี,14.4744892,100.11771279999994
+สุราษฎร์ธานี,9.1382389,99.32174829999997
+สุรินทร์,14.882905,103.49371070000007
+หนองคาย,17.8782803,102.74126380000007
+หนองบัวลำภู,17.2218247,102.42603680000002
+อ่างทอง,14.5896054,100.45505200000002
+อำนาจเจริญ,15.8656783,104.62577740000006
+อุดรธานี,17.4138413,102.78723250000007
+อุตรดิตถ์,17.6200886,100.09929420000003
+อุทัยธานี,15.3835001,100.02455269999996
+อุบลราชธานี,15.2286861,104.85642170000006
+บึงกาฬ,18.3609104,103.64644629999998
\ No newline at end of file