7. For the following, explain how each is categorized by the top-level ontology of Section 14.3.3:

(a) your skin

(b) the period at the end of the first sentence of this chapter

(c) the excitement a child has before a vacation

(d) the trip home from a vacation

(e) a computer program

(f) summer holidays

(g) the ring of a telephone

(h) the dust on your desk

(i) the task of cleaning your office

(j) the diagnosis of flu in a person

(k) France Based on this experience, suggest and justify a modification of the top-level ontology. Think about categories that are not exclusive or other distinctions seem to be fundamental.