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IADIS International Conference WWW/Internet 2010The example of meta-relation that we defined is represented by Y, in the formula above. To create it wecombine two Minsky’s relations (CapableOf and UsedFor) because we perceive that they complement eachother. If X 1 is capable of Y and if X 2 is used for Y, then X 1 and X 2 can be connected through the actionrepresented by Y.For example, to create a meta-relation to the sentence “a monkey eats banana”, considering the sentencespresented in Figure 1, there is the possibility of creating the meta-relation “eat”. The mapping to define ameta-relation is described as follow:CapableOf(monkey, eat) + UsedFor(banana, eat) = eat(monkey, banana)The complementation cited above can be observed, in this case, because CapableOf express the ability ofa concept and UsedFor express for what a concept is used for. In other words, if the monkey is capable of eatand the banana is used for eat, then it is possible to create the relation that express the monkey eats banana,i.e. eat(monkey, banana).Thus, we can observe that the meta-relation “eat” is more specific than the Minsky’s relations, because itexpress an action that, according to Gentner’s theory, give us more semantic. Different from Minsky’srelation, where different concepts can be linked through the same relation, the meta-relation “eat” involves adomain of concepts more specific (only the ones involved with this action).In order to observe the potential of the meta-relation, which apparently has more semantic than Minsky’srelation, we decided to make the second experiment in order to investigate if the use of the meta-relation canimprove the analogies results.4.1 Second ExperimentWe choose the same concept used in the first experiment, “banana”. Through this concept the prototypegenerated a specific semantic network related to the concept “banana”, as shown in Table 4:Table 4. Specific semantic network with meta-relations of the concept bananaRelation(Concept1, Concept2) Formal SpecificationLocationOf(banana, fruit bowl) R1 (X, Y1)UsedFor(banana, eat) R2 (X, Y2)IsA(banana, fruit) R3 (X, Y3)PropertyOf(banana, yellow) R4 (X, Y4)MadeOf(ice cream, banana) R5 (Y5, X)MadeOf(cake, banana) R6 (Y6, X)Cook(mother, banana) MR1(Y7, X)Cut(man, banana) MR2(Y8, X)Eat(monkey, banana) MR3(Y9, X)Buy(supermarket, banana) MR4(Y10, X)Peel(woman, banana) MR5(Y11, X)Table 4 shows just the first six results considering Minsky’s relation and the first fifth results consideringmeta-relations. With the result of Table 4, the prototype search for different concepts that match just eachrelation R and meta-relation MR in the whole semantic network of the OMCS-Br project. For each metarelation,in Table 4, we will show three matches in Table 5. We just added the meta-relation matches becausethe Minsky’s relation matches were presented in Table 2.39