Get some physical activity has a precondition of communication. Holiday shop has a precondition of communication. Go for walk has a precondition of go outside. Run twenty-six mile has a precondition of run marathon. Get some physical activity does not have a precondition of go outside. Run twenty-six mile does not have a precondition of hit ball. Run marathon has a precondition of exercise. Go for walk is utilised in break sweat. Health has a precondition of exercise. Exercise has a precondition of go for walk. Run twenty-six mile does not have a precondition of white noise.
Run marathon does not have a precondition of exercise.