Sentence 1: Bob needed to install RAM into his motherboard for a computer. 
 Sentence 3: Bob aligned each stick with the appropriate slots on the board 
 Sentence 4:  Then, he inserted the sticks into the slots and locked them in 
 Sentence 5:  Now, Bob had successfully installed his random access memory 
 Given Sentence 2: He jerked his head upwards and hit his bed's head board.