| http://www.w3.org/ns/prov#value | - and the like; and lactides such as 1-lactide, d-lactide, and d,l-lactide; glycolide; and dilactones such as those of the formulae: ##STR11## where R10 and q are as defined above, such as the dilactones of 2-hydroxycarboxylic acids such as 2-hydroxybutyric acid, 2-hydroxy-2-phenylpropanoic acid, 2-hydroxyl-3-methylbutanoic acid, 2-hydroxypentanoic acid, 2-hydroxy-4-methylpentanoic acid, 2-hydroxyhe
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