ITEM index thing

	if the "thing" is a word, outputs the "index"th character of the
	word.  If the "thing" is a list, outputs the "index"th member of
	the list.  If the "thing" is an array, outputs the "index"th
	member of the array.  "Index" starts at 1 for words and lists;
	the starting index of an array is specified when the array is
	created.

