##### LM #####
namespace n1

	lex
		token id / 'a' .. 'z' /
		ignore / '\n' | '\t' | ' ' /
	end

	def start
		[id*]
end

parse P: n1::start[stdin]
print( P )
##### IN #####
a
  b
  c
d
##### EXP #####
a
  b
  c
d