regex: (arm|back|ch(eek|in)|e(ar|lbow|ye)|h(air|ead|ip)|knee|l(eg|ips)|mouth|t(eeth|ooth))
arm:YES
back:YES
leg:YES
elbow:YES
ear:YES
eye:YES
chin:YES
cheek:YES
knee:YES
head:YES
hip:YES
tooth:YES
teeth:YES
lips:YES
mouth:YES
hair:YES

    Source: geocities.com/soho/square/Square/3472

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