An older man with a white beard stands in front of a mast on a large sailboat , while holding a rope .
It is probably not the case that a man with a beard stands in front of a mast .
It is certain that a man with a beard stands in front of a mast .
It is probably not the case that a man with a beard stands in front of a mast .
A man with a beard stands in front of a mast .