23102
The geographical location data used in geotagging can , in almost every case , be derived from the global positioning system , and based on a latitude / longitude-coordinate system that presents each location on the earth from 180 ° west through 180 ° east along the Equator and 90 ° north through 90 ° south along the prime meridian .
 Equator
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Equator