6220
He returned to Borussia Dortmund for the 1986 – 87 season .
 organization: Borussia Dortmund
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: Borussia Dortmund