Let $p,$ $q,$ $r,$ $s$ be the roots of
\[3x^4 - x + 12 = 0.\]Find $pqr + pqs + prs + qrs.$
Question:
Let $p,$ $q,$ $r,$ $s$ be the roots of
\[3x^4 - x + 12 = 0.\]Find $pqr + pqs + prs + qrs.$
Answer:
Let's think step by step.

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Let $p,$ $q,$ $r,$ $s$ be the roots of
\[3x^4 - x + 12 = 0.\]Find $pqr + pqs + prs + qrs.$
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