AVG (
COUNT(
FIRST(
FORMAT(
LAST(
LCASE(
LEN(
MAX(
MID(
MIN(
MOD(
NOW(
ROUND(
SUM(
UCASE(

----------------------------------------------------

[
	["function", "AVG"], ["punctuation", "("],
	["function", "COUNT"], ["punctuation", "("],
	["function", "FIRST"], ["punctuation", "("],
	["function", "FORMAT"], ["punctuation", "("],
	["function", "LAST"], ["punctuation", "("],
	["function", "LCASE"], ["punctuation", "("],
	["function", "LEN"], ["punctuation", "("],
	["function", "MAX"], ["punctuation", "("],
	["function", "MID"], ["punctuation", "("],
	["function", "MIN"], ["punctuation", "("],
	["function", "MOD"], ["punctuation", "("],
	["function", "NOW"], ["punctuation", "("],
	["function", "ROUND"], ["punctuation", "("],
	["function", "SUM"], ["punctuation", "("],
	["function", "UCASE"], ["punctuation", "("]
]

----------------------------------------------------

Checks for functions.