Sentence 1: Lena just arrived in the country and was struggling with money. 
 Sentence 3: To supply her income she had to work at night 
 Sentence 4:  But it made her very tired during the day 
 Sentence 5:  To resolve her problem, she found a better paying job 
 Given Sentence 2: She found a window cleaner's job but it didn't pay very well.