Sentence 1: Danny wanted to head to the park. 
 Sentence 3: He went to the park alone 
 Sentence 4:  Danny walked 4 miles at the park 
 Sentence 5:  Danny was proud of his exercise while at the park 
 Option 1: He called his friends and they agreed to go with him. 
 Option 2: He called his friends but none of them were available.