20221
However , in 1936 the Punjab Socialist Party , along with the Punjab branch of the Communist Party of India , joined the Congress Socialist Party .
 Punjab Socialist, Punjab, Communist Party of India, Congress Socialist
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Punjab Socialist, Punjab, Communist Party of India, Congress Socialist