At the beach , a man is laying on his stomach and reading a book while a woman in a polka-dot bikini sunbathes .
It is likely that the man and his wife are enjoying their first day of summer vacation .
It is highly unlikely that the man and his wife are enjoying their first day of summer vacation .
It is likely that the man and his wife are enjoying their first day of summer vacation .
The man and his wife are enjoying their first day of summer vacation .