TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Mucous does the esophagus produce for lubrication.

SOLUTION: What does the esophagus produce for lubrication?

PROBLEM: Dendrites from the cell body recieve impulses from other neurons.

SOLUTION: What do dendrites from the cell body recieve impulses from?

PROBLEM: Like acetic acid, pentanoic acid is carboxylic kind of acid.

SOLUTION:
Like acetic acid, pentanoic acid is what kind of acid?