Sentence 1: Stella loved to cook, but was not always attentive. 
 Sentence 3: The problem that was most troublesome was leaving things on the stove 
 Sentence 4:  This morning she'd left a towel on the stove that caught fire 
 Sentence 5:  Stella learned that day that cooking required her full attention 
 Given Sentence 2: He was talented at acting and singing.