In this task, you are given a fact statement and question based on the fact. Your task is to generate the correct answer for the question. The answer needs to be generated using the context fact statement.
--------
Question: Fact: In the food chain process some types of plankton have the role of producer. Question: Plankton can be the food as well as the creator of?

Answer: nourishment


Question: Fact: using a car causes pollution. Question: Which form of travel causes the most pollution?

Answer: driving


Question: Fact: An example of migration is birds flying south in the winter. Question: migration is when animals travel from the northern state such as north dakota to Texas during what segment of time?

Answer:
winter