Sentence 1: My sons did an experiment with their NCAA brackets this year. 
 Sentence 3: The other chose games based on the number of letters in their names 
 Sentence 4:  The tournament played out and we were shocked at the results 
 Sentence 5:  My son with the letter strategy won by a huge margin 
 Given Sentence 2: One son chose games based on the strength of the teams.