Instructions: Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.
Input: Paragraph: The Magic 8 - Ball is a hollow plastic sphere resembling an oversized , black - and - white 8 - ball . Inside , a cylindrical reservoir contains a white , plastic icosahedron floating in alcohol dyed dark blue . Each of the die 's 20 faces has an affirmative , negative , or non-committal statement printed in raised letters . These messages are read through a window on the ball 's bottom .
Question: how many answers are on a magic 8 ball

Output:
20