Sentence 1: I bought a house with an ugly yard. 
 Sentence 3: I tried to move it but it was too heavy 
 Sentence 4:  He picked at the stone with a chisel 
 Sentence 5:  He carved the rock into a lion head and kept it 
 Option 1: A cat lived in the yard. 
 Option 2: In the middle of the yard was a giant stone.