{"query": "sample q0", "doc_id": "d0"}
{"query": "sample q1", "doc_id": "d1"}
{"query": "sample q2", "doc_id": "d2"}
{"query": "sample q3", "doc_id": "d3"}
{"query": "sample q4", "doc_id": "d4"}
{"query": "sample q5", "doc_id": "d5"}