4-neither-comma-nopp.bgf

<?xml version="1.0" encoding="UTF-8"?>
<bgf:grammar xmlns:bgf="http://planet-sl.org/bgf">
	<bgf:production>
		<nonterminal>a</nonterminal>
		<bgf:expression>
			<nonterminal>b</nonterminal>
		</bgf:expression>
	</bgf:production>
	<bgf:production>
		<nonterminal>b</nonterminal>
		<bgf:expression>
			<nonterminal>c</nonterminal>
		</bgf:expression>
	</bgf:production>
	<bgf:production>
		<nonterminal>c</nonterminal>
		<bgf:expression>
			<nonterminal>d</nonterminal>
		</bgf:expression>
	</bgf:production>
	<bgf:production>
		<nonterminal>d</nonterminal>
		<bgf:expression>
			<nonterminal>e</nonterminal>
		</bgf:expression>
	</bgf:production>
	<bgf:production>
		<nonterminal>e</nonterminal>
		<bgf:expression>
			<nonterminal>f</nonterminal>
		</bgf:expression>
	</bgf:production>
</bgf:grammar>