Two men in chartreuse jackets and dungarees are working on the roof of a house .
It is almost certain that two employees of the same roofing company are working at a job site .
It is almost certain that two employees of the same roofing company are working at a job site .
Chances are about even that two employees of the same roofing company are working at a job site .
Two employees of the same roofing company are working at a job site .