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\*.

Input: Consider Input: what is the first known polyphonic setting of all the sung movements of the mass ordinary

Output: the Ivrea Codex


Input: Consider Input: who died in the plane crash in greys anatomy

Output: Dr. Lexie Grey


Input: Consider Input: identify the part of a neuron that releases neurotransmitter


Output: the axon terminal