Sentence 1: Greg was on webcam. 
 Sentence 3: He tries to stomp it out but it was too big 
 Sentence 4:  He ran out and called the cops 
 Sentence 5:  He ended up losing the house 
 Option 1: Greg saw a bright orange light behind him and realized it was a fire. 
 Option 2: Suddenly he sees a fire in his room.