Being pulled by dogs does not mean they are sledding with dogs.
The question and answer are below.
Given the sentence "Man and child being pulled by three dogs." is it true that "A man and a child are sledding with dogs."?
it is not possible to tell

Not all people boarding two yellow and blue trains. is traveling first class via train.
The question and answer are below.
Test for natural language inference.
Premise: "People are boarding two yellow and blue trains."
Hypothesis: "A group of travelers is traveling first class via train."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
it is not possible to tell

It may or may not be a man that is wakeboarding.
The question and answer are below.
Premise: "Wakeboarder getting air off of a wave."
Hypothesis: "A man wakeboarding."
Do we know that the hypothesis entailed by the premise?
it is not possible to tell