The two men could be playing with a Frisbee at any time during an event.  There is no indication in the first sentence that they are waiting for others to show up.


Context: "Two men, one in a yellow shirt and bandanna and another in white shirt and sunglasses, are standing on grass and playing with a white frisbee." Claim: "Two friends are playing frisbee while waiting for others to show up."
Considering the context, is the claim true, false, or unknown?