story: Arnold was a little boy who loved to eat cake. If his mother tried to feed him anything else, he would cry and cry. One day, Arnold had a bad ache in his tooth. The dentist had to pull three of his teeth because they were rotten. Arnold never ate cake again.
 selected sentence: One day, Arnold had a bad ache in his tooth.
Arnold has an ache in his tooth >Causes/Enables> Arnold goes to the dentist's