3. The computer program product of claim 2 , wherein the method further comprises: receiving a third expansion signal from the user; and expanding the dictionary to include a parent term of at least one of said terms from the ontological graph, wherein the parent term includes a term that describes the common trait, and wherein the dictionary is expanded to include the related terms in accordance with instructions derived from the third expansion signal.
2. The computer program product of claim 1 , wherein the method further comprises: receiving a second expansion signal from the user; and expanding the dictionary to include related terms for at least one of said terms from the ontological graph, wherein the related terms describe said at least one of said terms from the ontological graph, and wherein the dictionary is expanded to include the related terms in accordance with instructions derived from the second expansion signal.