story: Dudley was a pioneer in America, long ago. One day, he had to make a journey through a forest. While walking through the forest, he came upon a brown bear. He then noticed that the bear was with some tiny cubs. The bear charged Dudley, and he ran for his life.
 selected sentence: He then noticed that the bear was with some tiny cubs.
Dudley comes upon a brown bear while walking through a forest >Causes/Enables> Dudley notices two small cubs with the bear