Определите часть речи следующих слов и заполните таблицу: beautiful, usefulness, useful, artificial, natural, part, partly, ancient, egyptian, several, especial, especially, difference, different, decoration, decorative, decorate, discover, discovery, building.

Noun: usefulness, part, difference, Egyptian, decoration, discovery, building.
Verb: decorate, discover.
Adjectgive: beautiful, useful, artificial, natural, ancient, several, different, decorative.
Adverb: partly, especial, especially.