[Answer]-Replacing words in a sentence from database (Python/Django)

If you’re willing to change the notation, you have two options:

1. Use Python.

   >>> 'Starting in {Duration}, the {Noun} will be {Adjective}'.format(Duration='24 hours', Noun='Coffee Maker', Adjective='broken')
   'Starting in 24 hours, the Coffee Maker will be broken'
   >>> 'Starting in %(Duration)s, the %(Noun)s will be %(Adjective)s' % dict(Duration='24 hours', Noun='Coffee Maker', Adjective='broken')
   'Starting in 24 hours, the Coffee Maker will be broken'
   

2. Use Django.

   >>> from django.template import Context, Template
   >>> t = Template('Starting in {{Duration}}, the {{Noun}} will be {{Adjective}}') 
   >>> c = Context(dict(Duration='24 hours', Noun='Coffee Maker', Adjective='broken'))
   >>> t.render(c)
   u'Starting in 24 hours, the Coffee Maker will be broken'
   

The rest is pulling from the database and selecting the words at random, which is the easy part.