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

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

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

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

Checks for functions.