Sentence 1: Lia bought a butterfly net. 
 Sentence 3: But then she saw how delicate they were 
 Sentence 4:  She thought the net would hurt them 
 Sentence 5:  She decided not to chase them, after all 
 Option 1: She thought it would be fun to catch and study them. 
 Option 2: It was winter so she put it away, but then forgot about it.