Erythritol
Erythritol is a chemical compound , a sugar alcohol ( or polyol ) , used as a food additive and sugar substitute . 
<triplet> Erythritol <subj> chemical compound <obj> instance of <subj> sugar alcohol <obj> instance of <triplet> sugar alcohol <subj> polyol <obj> subclass of <triplet> sugar substitute <subj> food additive <obj> subclass of