Sentence 1: Amanda decided to take a scientific survey. 
 Sentence 3: However, Amanda did not see any disturbing content in the survey 
 Sentence 4:  She felt confused about this 
 Sentence 5:  She submitted the survey anyway, though 
 Option 1: At the beginning there was a warning about disturbing content. 
 Option 2: There was no warning at the beginning about disturbing content.