Premise: A man sits in a dingy stall which says "Sol Septu" on the sidewalk while a man poses before the stand but does not look at it.
Correct statement: It is unlikely that a man works in a stall while another man stands in front of the stall keeping watch for troublemakers.
Incorrect statement: It is probable that a man works in a stall while another man stands in front of the stall keeping watch for troublemakers.