A black man in a white cap and tank top lean over a wooden work area with an engraving tool in his hand among other tools .
It is impossible that a black man uses his tools to build a birdhouse for his son .
It is impossible that a black man uses his tools to build a birdhouse for his son .
It is certain that a black man uses his tools to build a birdhouse for his son .
A black man uses his tools to build a birdhouse for his son .