Sentence 1: Tom was making spaghetti. 
 Sentence 3: He checked the pantry and realized he forgot to buy pasta 
 Sentence 4:  He decided to use rice as the starch instead 
 Sentence 5:  He liked the taste but still made a note reminding him to buy pasta 
 Given Sentence 2: Sandy was intrigued to find out who the flowers were from.