Problem: How to do a front aerial on the beam
Stretch well.
It's safer if you stretch for at least 10 to 15 minutes, before attempting difficult skills.
Practice on the floor, and along a line.

Answer: A couple of prerequisites, (things you need to be able to do first) are a front walkover on the beam/line. Also, you'll need to be comfortable doing a front aerial, on the floor and line first.

Problem: A woman is kneeling down talking the the camera. The woman then grabs a pair of running stilts and demonstrates them. several people

Answer: then go through a city park on the running stilts.

Problem: A woman walks to the bank of a river holding a camera. suddenly
Answer: , two men appears sailing in inflatable boats while the woman takes pictures.