Q: Stephen Colbert is funnier than John Stewart since his show has less viewers.
Who his is?
A: John Stewart

Q: The product fair showed Office 365, and it had a lot of attendees.
Who it is?
A: The product fair

Q: Jim Carrey convinced Jeff to travel with him to Aspen, since he had wanted to travel to Aspen for a long time.
Who he is?
A:
Jeff