sentences: a cell wall provides support / protection / shape / structure for a plant cell
docs: plant_cell is cell. plant_cells has cell_wall cell_wall is layer. bacterial_cell_wall is cell_wall. fungal_cell_wall is cell_wall. plant_cell_wall is cell_wall. prokaryotic_cell_wall is cell_wall. cell_wall is cell_part. cell_wall is cell_plate_material. cell_wall is external_anatomical_part.