Using the Supplied Parser
(rock (noun (root rock)))
(rocks (noun (root rock)))
(glass (noun (root glass)))
(glasses (noun (root glass)))
(fred (noun (root fred)))
(heavy (adj (root heavy)))
(broken (adj (root broken)))
(breaks (verb (root break)))
(recycles (verb (root recycle)))
(lifts (verb (root lift)))
(quickly (adv (root quick)))
(carefully (adv (root care)))))