357921
In 1889 , hired by the Fronteriza Mining Company , he was involved in the capture of a group of silver ore thieves who were traveling with a large mule caravan en route to their hideout where they planned to hide the loot in an abandoned silver mine outside Shafter , Texas .
 Shafter , Texas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Shafter , Texas