story: Martha was at home about to go to bed. Suddenly she heard a knock on the door. It was a police officer. He let Martha know that her adult daughter had been in an accident. Martha rushed to the hospital to check on her.
 selected sentence: He let Martha know that her adult daughter had been in an accident.
The police officer let Martha know that her adult daughter had been in an accident >Causes/Enables> Martha rushed to the hospital to check on her