Unused / unissued material - Colour material.
MS in lecture theatre of school / college with students / pupils singing. VS in classroom the teacher and children during reading lesson. Shots of children outside the school singing (mute) and doing movements to their music. VS of children walking along street with teacher. VS of the covers to underground bomb shelters.
VS of people riding bicycles in streets. Pan to show covers of bomb shelters. Shot is repeated. VS of people walking past shelters.