Finding a string pattern in a list

I have a string list with logs of process like this:

• Processing rule 20247, inventory 2661866
• Processing rule 20241, inventory 2662223
• Enviando a app 0 inventories
• Enviando a app 5 inventories
• Aplicando reglas del 2018-05-07
• Guardando log para el NDO actual (count=2)
• Aplicando reglas del 2018-05-08
• Guardando log para el NDO actual (count=1)
• Processing rule 20247, inventory 2639899
• Processing rule 20241, inventory 2640295

And I want to make some method to retrieve the differents patterns that we have in that list. For eg.:

• Processing rule {0}, inventory {1}
• Enviando a app {0} inventories
• Aplicando reglas del {0}
• Guardando log para el NDO actual (count={0})

The main idea is that I don't want to code every possible pattern, insted of this I'm thinking in using some Machine Learning so if tomorrow I have a new pattern in the list I don't have to code nothing else. I don't have problem if I need to train the system.

Someone know any example that I can follow to do this? Thank you!