Sentence 1: I went to visit my sister who lived in a neighborhood on a hill. 
 Sentence 3: The neighbors came to the door 
 Sentence 4:  They told us that there was a tornado in the sky to the north 
 Sentence 5:  We all went outside and watched the tornado until it was gone 
 Option 1: We all got our skateboards out and had a blast skateboarding down the hill. 
 Option 2: A big storm with dark clouds blew in.