function@@1	function	operation	21
function@@1	function	task	20
function@@1	function	action	11
function@@1	function	role	11
function@@1	function	purpose	10
function@@1	function	capacity	8
function@@1	function	job	7
function@@1	function	use	6
function@@1	function	duty	5
function@@1	function	application	4
function@@1	function	mathematical function	4
function@@1	function	service	4
function@@3	function	mathematical function	4
function@@3	function	dependent quantity	2
function@@3	function	quantity	2