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\*.
--------
Question: how long is a tracking number for ups

Answer: 18 characters


Question: the first life forms to appear on earth were

Answer: putative fossilized microorganisms


Question: how many stories is the tallest building in nigeria

Answer:
32