1766
History : Two stations in one The first Ivy Ridge station was constructed by SEPTA in 1980 when service was extended an additional 0.8 miles past Manayunk East station , the passenger terminus of the Pennsylvania Railroad 's ( PRR ) Schuylkill Branch since 1960 .
 organization: Pennsylvania Railroad
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: Pennsylvania Railroad