1395
In case no . 2 , the pathogenic mechanism seemed to be persistent light reaction preceded by systemic photoallergy , as he had taken mequitazine for 6 months , and there were strong positive photopatch test results with immediate erythema reaction , cross - reaction to promethazine , decreased MED to both UVA and UVB , and persistence of the photosensitivity over a 3-year follow - up period after discontinuation of the mequitazine .
 adverse effect: cross - reaction to promethazine, mequitazine; adverse effect: cross - reaction to promethazine, mequitazine; adverse effect: cross - reaction to promethazine, promethazine; adverse effect: decreased MED to both UVA and UVB, mequitazine; adverse effect: decreased MED to both UVA and UVB, mequitazine; adverse effect: decreased MED to both UVA and UVB, promethazine; adverse effect: erythema, mequitazine; adverse effect: erythema, mequitazine; adverse effect: erythema, promethazine; adverse effect: persistence of the photosensitivity, mequitazine; adverse effect: persistence of the photosensitivity, mequitazine; adverse effect: persistence of the photosensitivity, promethazine
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, promethazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, promethazine; erythema, mequitazine; erythema, mequitazine; erythema, promethazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, promethazine 
Answer:
 adverse effect: cross - reaction to promethazine, mequitazine; adverse effect: cross - reaction to promethazine, mequitazine; adverse effect: cross - reaction to promethazine, promethazine; adverse effect: decreased MED to both UVA and UVB, mequitazine; adverse effect: decreased MED to both UVA and UVB, mequitazine; adverse effect: decreased MED to both UVA and UVB, promethazine; adverse effect: erythema, mequitazine; adverse effect: erythema, mequitazine; adverse effect: erythema, promethazine; adverse effect: persistence of the photosensitivity, mequitazine; adverse effect: persistence of the photosensitivity, mequitazine; adverse effect: persistence of the photosensitivity, promethazine