The task is to find the relation between e1 and e2 from the label list. The relation type can have two directions (e1, e2) or (e2, e1), depending on the context of the sentence.\tGiven Sentence: "Their <e1>composer</e1> has sunk into <e2>oblivion</e2>." \tChoose one of following choices: relations_dict = {\t'Cause-Effect(e1, e2)': 0,\t'Cause-Effect(e2, e1)': 1,\t'Component-Whole(e1, e2)': 2,\t'Component-Whole(e2, e1)': 3,\t'Content-Container(e1, e2)': 4,\t'Content-Container(e2, e1)': 5,\t'Entity-Destination(e1, e2)': 6,\t'Entity-Destination(e2, e1)': 7,\t'Entity-Origin(e1, e2)': 8,\t'Entity-Origin(e2, e1)': 9,\t'Instrument-Agency(e1, e2)': 10,\t'Instrument-Agency(e2, e1)': 11,\t'Member-Collection(e1,e2)': 12,\t'Member-Collection(e2,e1)': 13,\t'Message-Topic(e1,e2)': 14,\t'Message-Topic(e2,e1)': 15,\t'Product-Producer(e1,e2)': 16,\t'Product-Producer(e2,e1)': 17,\t'Other': 18\t}\tPlease just choose one from the above relations_dict without any explanations. Do not say any word before repeating the exact request.
user