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Robbins v. Lower Merion School District is a federal class action lawsuit , brought in February 2010 on behalf of students of two high schools in the Philadelphia , Pennsylvania suburbs .
 organization: Lower Merion School District; organization: Philadelphia; location: Pennsylvania
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: Lower Merion School District; organization: Philadelphia; location: Pennsylvania