The dog that got hurt in sentence 2 may not have gone headfirst into the long grass.
This justifies what answer for what question? Q & A:

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
Premise: "A dog goes headfirst into the long grass from the sand."
Hypothesis: "There is a dog outdoors who got hurt in the grass."
Do we know that the hypothesis entailed by the premise?
it is not possible to tell