After a brief skim through the API docs, I do not think that this is possible as there does not appear to be an easy way to access the inverted file tables directly to get the unique word list, frequency tables and positional vectors.

Obtaining that list would only be the first stage, then you would need to run that list through some additional process to identify nouns, verbs, adverbs, colours, dates, names, etc. That would be OK for single word 'objects', your list includes multi-word objects and then there is the problem of context e.g. 2001 - film, book or date; Alias - TV Show or another name?