http://www.w3.org/ns/prov#value | - , saturated or unsaturated O-heterocycles, saturated or unsaturated S-heterocycles, saturated or unsaturated mixed heterocycles, aliphatic or non-aliphatic straight- or branched-chain C1 to C30 hydrocarbons, or or ???(CH2)m???Y1 where m is an integer from 0 to 10 and Y1 is a saturated or unsaturated cyclic hydrocarbon, saturated or unsaturated N-heterocycle, saturated or unsaturated O-heterocycle,
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