$ pwd
/home/bob/Downloads/Markov-master
$ cx 4.markov.pl   #alias for chmod +x
$ ./4.markov.pl markov/
sub_dir is markov/
path1 is /home/bob/Downloads/Markov-master
path2 is /home/bob/Downloads/Markov-master/markov
out_file is /home/bob/Downloads/Markov-master/markov/my_data/20-03-2019-14-27-36.txt.txt
-------system out---------
I, al debaran, have endured many adventures in my life, but I really thought it was all prettymuch random. That the universe were deterministic never really occured to me. 

I love to throw the toy with the dog! When I throw with my left hand, I try to follow through with extension. Sometimes I repeat with the undef hand. You never know when the toy will take a big bounce, so I keep it low. It went south to the fence. Then my pretty pitty retrieved it at a gallop.
.7 of the time I go to the gym. I perform stretching for my health.
----------------
[
  ["protaganist", "al debaran", "the narrator", "JAPH", "gilligan"],
  ["trials", "adventures", "Bedraengnisse"],
  ["ball", "toy", "object"],
  ["orientation", "left", "right"],
  ["dog", "my pretty pitty"],
  ["num1", ".7", ".3", "50 percent"],
  ["activity", "stretching", "swimming"],
  ["non_orientation", "undef"],
  ["direction", "south to the fence", "west", "yonder"],
]
$