A policeman wearing a yellow reflective jacket riding a motorcycle waving to the camera .
It is unlikely that a policeman wears a yellow reflective jacket so he can be seen when riding his motorcycle .
It is highly likely that a policeman wears a yellow reflective jacket so he can be seen when riding his motorcycle .
It is unlikely that a policeman wears a yellow reflective jacket so he can be seen when riding his motorcycle .
A policeman wears a yellow reflective jacket so he can be seen when riding his motorcycle .