	VAR		var
	ID		x
	COLON		:
	INT		1
	SEMI		;
	REG		reg
	ID		r1
	ASSIGN		:=
	OR		or
	LPAREN		(
	STR_LIT		"a"
	COMMA		,
	STR_LIT		"b"
	RPAREN		)
	SEMI		;
	ASSERT		assert
	ID		x
	IN		in
	ID		r1
	SEMI		;
