Sentence 1: Wesley was a taxi driver. 
 Sentence 3: After he dropped the passenger off, he noticed a bag in the taxi 
 Sentence 4:  He opened the bag to find five hundred dollars 
 Sentence 5:  Wesley ran after the passenger and returned the money 
 Option 1: He was driving his empty taxi to the airport. 
 Option 2: He was taking a passenger to the airport.