t1: relation_id: 1 sequence_id: 1 member_role: "some" member_type: "Way" member_id: 3 t2: relation_id: 1 sequence_id: 2 member_role: "some" member_type: "Node" member_id: 5 t3: relation_id: 1 sequence_id: 3 member_role: "some" member_type: "Relation" member_id: 3 t4: relation_id: 3 sequence_id: 1 member_role: "some" member_type: "Node" member_id: 5 t5: relation_id: 2 sequence_id: 1 member_role: "some" member_type: "Node" member_id: 5 public_used: relation_id: 6 member_role: "used by other relation" member_type: "Relation" member_id: 5 r8_m1: relation_id: 8 sequence_id: 1 member_role: "some node" member_type: "Node" member_id: 15 r8_m2: relation_id: 8 sequence_id: 2 member_role: "some way" member_type: "Way" member_id: 4 r8_m3: relation_id: 8 sequence_id: 3 member_role: "some relation" member_type: "Relation" member_id: 7