Two white men dressed in white and black Tae Kwon Do uniforms , competing with each other on a green and red matt while a team of onlookers watch .
It is probably the case that a couple of guys are sparring in a tae kwon do competition .
It is probably the case that a couple of guys are sparring in a tae kwon do competition .
It is improbable that a couple of guys are sparring in a tae kwon do competition .
A couple of guys are sparring in a tae kwon do competition .