7440
The Key System originally planned to end train operations in 1948 when it replaced its streetcars with buses , but Caltrans did not approve of this .
 organization: Key System; organization: Caltrans
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:
 organization: Key System; organization: Caltrans