Is the premise "A woman in a purple shirt playing an instrument." true if "A women in a purple shirt playing a guitar."?
it is not possible to tell
Is the premise "A shopkeeper talks to a customer outside his store." true if "The shopkeeper is taking the customer's money"?
no
Is the premise "A man at a rodeo who may have fell off the horse." true if "this takes place in someone's living room."?
no
Is the premise "A white dog sitting on a dock next to some sailboats." true if "The black dog paces up and down the beach."?
no