story: Paul's car broke down. He needed to go to work, so he called a friend to ask for a ride. Paul's friend said that he would pick him up from work. When Paul's friend arrived, one of his back tires was low. Paul had to catch a taxi to work.
 selected sentence: When Paul's friend arrived, one of his back tires was low.
One of the back tires is low on Paul's friend's car >Causes/Enables> Paul has to catch a taxi