QUESTION: Can we conclude from "A couple is dancing in costa rican outfits." that "A couple are wearing shoes."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A couple is dancing in Costa Rican outfits does not necessary that they are wearing shoes.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "Looks like students are in a laboratory." that "People standing in a room full of machines."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Laboratory does not imply a room of machines. Students are in the room; this does not mean they are standing.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A hockey player in a yellow jersey is guarding the goal." that "The player is trying to score."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
One cannot be guarding the goal while trying to score goal.
The answer is no.