185942
Broad Street Line Fern Rock Transportation Center became the northern terminus of the Broad Street Line in 1956 , when the Broad Street Line was extended north from the original northern terminus at Olney Transportation Center by the Philadelphia Transportation Company ( PTC ) and the City of Philadelphia .
 Fern Rock, Philadelphia, Philadelphia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fern Rock, Philadelphia, Philadelphia