Question: Where does the smell of vanilla come from?

context: No context provided
question: From what source does vanilla and the smell of vanilla come from?
short_answers: orchids of the genus Vanilla
context: The fruit, a seed capsule, if left on the plant, ripens and opens at the end; as it dries, the phenolic compounds crystallize, giving the fruits a diamond-dusted appearance, which the French call "givre" (hoarfrost). It then releases the distinctive vanilla smell. The fruit contains tiny, black seeds. In dishes prepared with whole natural vanilla, these seeds are recognizable as black specks. Both the pod and the seeds are used in cooking.
question: What part of the vanilla plant does the smell of vanilla come from?
short_answers: The fruit, a seed capsule, if left on the plant
context: The fruit, a seed capsule, if left on the plant, ripens and opens at the end; as it dries, the phenolic compounds crystallize, giving the fruits a diamond-dusted appearance, which the French call "givre" (hoarfrost). It then releases the distinctive vanilla smell. The fruit contains tiny, black seeds. In dishes prepared with whole natural vanilla, these seeds are recognizable as black specks. Both the pod and the seeds are used in cooking.
question: What chemicals gives vanilla the smell of vanilla?
short_answers: phenolic compounds

Answer: Vanilla is a spice derived from orchids of the genus Vanilla, primarily obtained from pods of the Mexican species, flat-leaved vanilla (V. planifolia). The fruit, a seed capsule, if left on the plant, ripens and opens at the end; as it dries, the phenolic compounds crystallize, giving the fruits a diamond-dusted appearance, which the French call "givre" (hoarfrost). It then releases the distinctive vanilla smell.