A bald man in an orange shirt and jeans is vacuuming an office carpet with a carry-along canister vacuum .
It is probably the case that the man works part-time as a janitor in this building , and vacuuming in one of the things he is paid for .
It is impossible that the man works part-time as a janitor in this building , and vacuuming in one of the things he is paid for .
It is probably the case that the man works part-time as a janitor in this building , and vacuuming in one of the things he is paid for .
The man works part-time as a janitor in this building , and vacuuming in one of the things he is paid for .