instruction:
Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
question:
Which is the penultimate letter of the Greek alphabet?
answer:
psi


question:
With which Dutch football club did Johan Cruyff spend most of his career?
answer:
ajax


question:
Indonesia's governing constitution since independence is a?
answer:

presidential system