Premise: "Bicyclist checking to make sure that his teammate is behind him."
Hypothesis: "The bike rider is drinking a bottle of water."
Do we know that the hypothesis entailed by the premise? Stream of thoughts:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
You can't be checking the teammate is behind him and be drinking a bottle of water.
Therefore, the answer is no.