instruction: please list the ground transportation from LGA into NEW YORK
response: SELECT DISTINCT transport_type FROM ground_service WHERE (airport_code IN (SELECT AIRPORTalias0.airport_code FROM airport AS AIRPORTalias0 WHERE AIRPORTalias0.airport_code = 'LGA') AND city_code IN (SELECT CITYalias0.city_code FROM city AS CITYalias0 WHERE CITYalias0.city_name = 'NEW YORK'))