story: Last friday was my sister's birthday. She really wanted a cake so I baked her one. I asked my friend to take it to my sister's house with me. On the way there, my friend dropped the cake on the car floor. We stopped at the store to buy a new one and my sister was happy.
 selected sentence: On the way there, my friend dropped the cake on the car floor.
My friend drops my sister's cake on the car floor >Causes/Enables> We buy a new cake at the store