name the borough of the airport station which is also the route end of the g4w3 lechang–guangzhou expressway ?
SELECT DISTINCT var_uri where brack_open dbr_Airport_Station_ attr_open Shenzhen attr_close dbp_borough var_uri sep_dot dbr_G4W3_Lechang–Guangzhou_Expressway dbo_routeEnd var_uri brack_close