TASK DEFINITION: In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.
PROBLEM: why is the congo river not navigable for its entire course

SOLUTION: the three major falls

PROBLEM: when does the magician's nephew take place

SOLUTION: England

PROBLEM: who played god in monty python and the holy grail

SOLUTION:
Graham Chapman