Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

concept: Gregor Mendel  question:  what organism did mendel use?
['He continued teaching part-time, and began his experiments with cross-breeding garden peas.']

concept: Guatemala  question:  what is guatemala current system of government?
['Constitutional republic', 'Presidential system', 'Unitary state']

concept: John Fox 1955  question:  who did john fox coach for?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
['Denver Broncos']

