preferred_name: ALK binds ligand midkine (MDK) (Rattus norvegicus)
preferred_name_lc: alk binds ligand midkine (mdk) (rattus norvegicus)
label: ALK binds ligand midkine (MDK) (Rattus norvegicus)
label_lc: alk binds ligand midkine (mdk) (rattus norvegicus)