QUESTION: If "People riding bicycles carry large plastic bags full of cans." does that mean that "People are stealing from the dump."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: If people were stealing from the dump they would probably not use bicycles.
The answer is no.

QUESTION: Can we conclude from "A young boy wearing a large hat reaches to catch a frisbee." that "The little boy has no hat on."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A boy cannot be wearing a large hat if he has no hat on.
The answer is no.

QUESTION: Can we conclude from "Skateboarder in black with yellow skateboard in midair." that "Young skateboarder skates on a half pipe to get air."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Just because skateboarder in black with yellow skateboard in midair does not indicate that young skateboarder skates on a half pipe to get air.
The answer is it is not possible to tell.