Given a scientific question, generate a correct answer to it.

Ex Input:
What are fungus-like protists?

Ex Output:
molds

Ex Input:
Many adults and some children suffer from a deficiency of lactase. these individuals are said to be lactose intolerant because they cannot digest the lactose found in what?

Ex Output:
milk

Ex Input:
What is a sac filled with fluid or other material?

Ex Output:
a cyst