197732
He and Hill became embroiled in a much-publicized behind-the-scenes fight with Aliens original writer , Dan O'Bannon , over who was to receive screenplay credit .
 person: Dan O'Bannon
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Dan O'Bannon 
Answer:
 person: Dan O'Bannon