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We report the case of a 17-year - old male who developed chest pain , elevated cardiac biomarkers , and acute left ventricular dysfunction following a single dose of methylphenidate .
 adverse effect: acute left ventricular dysfunction, methylphenidate; adverse effect: chest pain, methylphenidate; adverse effect: elevated cardiac biomarkers, methylphenidate
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:  acute left ventricular dysfunction, methylphenidate; chest pain, methylphenidate; elevated cardiac biomarkers, methylphenidate 
Answer:
 adverse effect: acute left ventricular dysfunction, methylphenidate; adverse effect: chest pain, methylphenidate; adverse effect: elevated cardiac biomarkers, methylphenidate