gistfile1.py

# script in python 3.3

import sys
import pprint

def vd (input):
	pprint.pprint (input)

try:
	file = open('input.txt', 'r')
	file = file.read()
except:
	input("\"input.txt\" file do not exist")
	sys.exit()


# remove new lines
file = file.replace('\n', '')

# split to list/array
file = file.split("|no")

# remove "" empty items
file = list(filter(None, file))

# remove numbers (n:)
blocks = []
for item in file:
	_numb, _sep, line = item.partition(':')
	blocks.append(line)

# lines split (|)
temp = blocks
blocks = []
for item in temp:
	lines = item.split('|')
	blocks.append(lines)

# all sentences split (,)
temp = blocks
blocks = []
sentences = []

for block in temp:

	_block = []

	for line in block:
		_sentences = []
		_start, _, _last = line.rpartition(' ')

		for item in _last.split(','):
			_sentences.append(_start + ' ' + item)

		_block.append(_sentences)

	blocks.append(_block)


############################################
output = ''
num = 0
for block in blocks:

	output = output + str(num) + ':'

	for sentences in block:
		for sentence in sentences:
			output = output + sentence + '|'

	output = output + 'no\n'

	num = num + 1
############################################

############################################
from itertools import product

output = ''
num = 0

for block in blocks:
	combinations = list(product(*block))
	for comb in combinations:
		comb = list(comb)
		output = output + str(num) + ':' + '|'.join(comb) + '|no\n'
	num = num + 1

f = open('output.txt', 'w')
f.write(output)
f.close()
############################################