Please answer the following question by reasoning step-by-step. Given the sentence "One dog is jumping up at another dog by a fence on a snowy day." is it true that "The dogs are wearing collars."?. Step-by-step reasoning:

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
One dog jumping up at another dog are not necessarily wearing collars. So the answer is it is not possible to tell.