This is a true story. Tristin Saghin enjoyed the movie Black Hawk Down very much,which is about the conflict in Somalia.The battle scenes and the exciting rescues of people who are dying,interested him greatly. There was just one problem:Tristin was only 9 years old,and it was thought that movie was not for children. When his parents caught him watching it on TV,they made him turn it off,though he had finished his homework and it was not late. Then one day,Tristin and his family were visiting his grandmother in Mesa,Arizona. Tristin's 2yearold sister got out of the house and fell in the backyard pool. Realizing the little girl was missing,the family ran outside,only to find the girl had fallen into the water. Pulled from the pool and placed on the ground,the child wasn't breathing. The family called the ambulance  ,but no one knew how to do first aid. No one,that is,except for Tristin. A scene in Black Hawk Down describes a doctor giving first aid. Tristin remembered it. Then the 9yearold gave first aid to his sister at once and saved her life. His parents don't stop him seeing the movies he likes any more. Tristin taught himself how to do first aid but he had never thought he could use it to save his little sister's life. Any skill can be used in time,so you should always learn. Black Hawk Down is a(n)  _  .
war movie comedy action movie love film