4120
In 1849 , George McKinstry sold an undivided half of Rancho Arroyo Chico to Bidwell .
 location: Chico; person: Bidwell
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Chico; person: Bidwell