QUESTION: If "Person sitting and leaning back against white house while dog sits in front of him." does that mean that "A man sits on a porch with his dog."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not every person is a man and sitting by a dog does not imply it is his dog.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "Two little brown-haired girls are grinning and squinting their eyes." that "The little girls are enjoying a sunny day at the playground."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Girls grinning and squinting does not imply being at the playground.
The answer is it is not possible to tell.

QUESTION: If "Two men are sitting working on their computers." does that mean that "The men are co workers."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
Not all men are sitting working on their computers are co workers.
The answer is it is not possible to tell.