text: <unk>  is the mainstay of treatment for<unk>  of the lung.
option_0: Adenocarcinoma of the lung surgery
option_1: Large cell carcinoma of the lung surgery
option_2: Squamous cell carcinoma of the lung surgery
option_3: Small cell carcinoma of the lung surgery
option_4: Lung cancer surgery
option_5: Nasopharyngeal carcinoma surgery
option_6: Mesothelioma surgery
option_7: Pancoast tumor surgery