Sentence 1: Charles was under a lot of stress. 
 Sentence 3: His boss fired him recently for not enough sales per hour 
 Sentence 4:  The last place Charles thought he'd find a job was through Craigslist 
 Sentence 5:  But he applied for a public relations position and is back employed 
 Given Sentence 2: He wanted to improve the quality of life in his country.