Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Body of water does not imply a canal and man does not imply dad and boy does not imply son.
 The question and answer:
Given the sentence "A man and a boy walk on a path next to a body of water." is it true that "A dad and his son are walking next to a canal."?
The answer is it is not possible to tell