L1	input.pod	/^=head1 L1$/;"	c	line:1	end:6
L3	input.pod	/^=head3 L3$/;"	S	line:2	chapter:L1	end:3
L4	input.pod	/^=head4 L4$/;"	t	line:3	subsection:L1""L3	end:3
L2	input.pod	/^=head2 L2$/;"	s	line:4	chapter:L1	end:6
L3'	input.pod	/^=head3 L3'$/;"	S	line:5	section:L1""L2	end:6
