Sentence 1: Tom, a high school student, did not do well on a test. 
 Sentence 3: Tom didn't want his mother to find out his poor grade 
 Sentence 4:  So, he forged her signature 
 Sentence 5:  The next day, he handed the test to the teacher and got away with it 
 Given Sentence 2: The teacher told Tom that his mother had to sign the graded test.