which writer of alvin and the chipmunks: chipwrecked is also the author of skywriting by word of mouth ?
SELECT DISTINCT var_uri where brack_open dbr_Alvin_and_the_Chipmunks:_Chipwrecked dbp_writer var_uri sep_dot dbr_Skywriting_by_Word_of_Mouth dbo_author var_uri brack_close