boards are made of folding
other_boards_made_of_wood is ironing_boards_and_surf_boards. sandwich_board is signboard. floorboard is board. sideboard is board. breadboard is board. deck_chair is folding_chair. board is flat_piece_of_wood. whiteboard is board. board is cut_piece_of_lumber. other_boards_made_of_wood is not ironing_boards_and_surf_boards.