2046
The song was developed out of two separate song ideas that were combined with the help of producer Robert John " Mutt " Lange .
 person: Robert John " Mutt " Lange
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:
 person: Robert John " Mutt " Lange