Is the premise "A group of construction workers dressed in orange safety vest sit on the ground assembling a railroad track." true if "Construction workers put together the railroad track."?
yes
Is the premise "A bald man wearing a blue shirt eating." true if "A man is eating a hot dog."?
it is not possible to tell
Is the premise "A girl is laying in the grass and a man is sitting on a rock." true if "The people are inside."?
no
Is the premise "A singer standing in green light." true if "A guitar player sits on a stool and plays."?
no