name the fictional character who was in alvin and the chipmunks and portrayer is alvin and the chipmunks ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_series dbr_Alvin_and_the_Chipmunks_ attr_open 2015_TV_series attr_close sep_dot var_uri dbo_portrayer dbr_Alvin_and_the_Chipmunks_ attr_open film_series attr_close sep_dot var_uri a dbo_FictionalCharacter brack_close