What part of speech are
etc, or what category do they fall under?
The reason I am asking this is that I am programming a sentence generator, and my sentence structure looks a bit like this:
[noundesc] [adj][0 to 2] [noun] [verb-ed]or[verb-s] [noundesc] [adj][0 to 2] [noun]
Actually, this is just one of the sentence variations, but I'm just using it as an example. Right now I'm referring to them as "noundesc"s (short for "noun describers"), because I don't have a good name.
I have found that "this," "that," "these," and "those" are called demostrative pronouns, but that does not encompass all of these words.
What is a name for these types of words? I need a name so I can search for a list of them, which I will use in my sentence generator. Are these just special kinds of adjectives, and if so, is there any special name for them?