story: I was riding on the bus today. A person bumped into me. The person who bumped into me started to hurry off the bus with my pur I screamed to the bus driver to not let him off. The bus driver kept the door closed till the police came.
 selected sentence: I was riding on the bus today.
I was riding on the bus today. >Causes/Enables> A person on the bus bumped into me.