11281
The cause of these previously unreported side effects of niacin therapy is uncertain but may be related to prostaglandin - mediated vasodilatation , hyperalgesia of sensory nerve receptors , and potentiation of inflammation in the gingiva with referral of pain to the teeth .
 adverse effect: hyperalgesia of sensory nerve receptors, niacin; adverse effect: pain to the teeth, niacin; adverse effect: potentiation of inflammation in the gingiva, niacin; adverse effect: prostaglandin - mediated vasodilatation, niacin
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: hyperalgesia of sensory nerve receptors, niacin; adverse effect: pain to the teeth, niacin; adverse effect: potentiation of inflammation in the gingiva, niacin; adverse effect: prostaglandin - mediated vasodilatation, niacin