>>> from construction import mark_text

>>> t = 'Eat food, not too much. Mostly vegetables.'
>>> mark_text(t)
'Eat food,(comma) not too much.(dot) Mostly vegetables.(dot)'
>>> t = 'I like fruit: oranges, apples, cherries, and so on.'
>>> mark_text(t)
'I like fruit:(colon) oranges,(comma) apples,(comma) cherries,(comma) and so on.(dot)'
>>> t = "I ordered a cheeseburger for lunch; life's too short for counting calories"
>>> mark_text(t)
"I ordered a cheeseburger for lunch;(semicolon) life's too short for counting calories"