Sentence 1: Dan was playing in the yard at home. 
 Sentence 3: Dan heard a creaking sound but wasn't sure what it was 
 Sentence 4:  Just then a large branch collapsed under the weight of snow 
 Sentence 5:  Dan stared in shock at the narrowly missed fallen branch 
 Option 1: Due to diseases all trees were excavated in his yard. 
 Option 2: There was a large old tree in his backyard.