3656
Line S9 ( Milan suburban railway service ) Saronno ↔ Albairate-Vermezzo
 Line S9 ( Milan suburban railway service ), Saronno, Albairate-Vermezzo
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Line S9 ( Milan suburban railway service ), Saronno, Albairate-Vermezzo