Premise & hypothesis: Is the premise "A man sells inflatable toys at an outdoor event." true if "Someone is looking at the blue sky outside."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "A small car drives on two wheels on a village street." true if "A car is driving down the street."?
A: yes

Premise & hypothesis: Is the premise "Four men are rollerskating in a line, with the last three holding onto the hips of the man ahead of them." true if "The men are not touching."?
A: no

Premise & hypothesis: Is the premise "Backpackers ascend a set of stairs in the woods." true if "Backpackers go up some stairs."?
A:
yes