Whole example scenes to start a video from: dialogue, a story shot, a vertical card.

Without a name, lists the example scenes (what each is, what it shows, its length, size and price in units). With a name, returns that scene whole, written inline as video_render wants it: copy the nearest one and change its words, seed and numbers. Each was rendered by this service's own engine and looked at before it was listed. Costs no units.