Sentence 1: My friend was walking around a pool. 
 Sentence 3: Her dad stood up from the chair and dived into the water 
 Sentence 4:  He was able to pick up my friend 
 Sentence 5:  She was safe when she stood up 
 Option 1: She ended up falling on the deep end. 
 Option 2: She ended up rising on the shallow end.