Sentence 1: After playing outside in the snow Jemma was feeling quite chilly! 
 Sentence 3: Jemma heated the milk carefully, then poured it over the powder 
 Sentence 4:  Then she sat down to drink the warm, frothy beverage 
 Sentence 5:  When the cup was empty, Jemma felt warm and satisfied 
 Given Sentence 2: She decided to make herself a cup of hot chocolate to warm up.