Anchor: One is an easy, flat, and short (about 30 minutes roundtrip) trip to the Risco waterfall.
Entailed: The journey to Risco waterfall doesn't take long.
Contradiction: The trail to Risco waterfall is very long and arduous. 
Contradiction: They all carry billy clubs because who's gonna try to take one?
Contradiction: A man uses his phone.
Contradiction: A young girl destroys her pink bicycle.
Contradiction: A man is riding a skateboard.