28690
In March 2007 , veteran producer Lynda Obst and Marc Rosen partnered to form Rosen-Obst Productions , a film and television production company .
 person: Lynda Obst; person: Marc Rosen
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: Lynda Obst, Marc Rosen 
Answer:
 person: Lynda Obst; person: Marc Rosen