An analogy is a comparison of two things to show their relation of the similarities, logical relations, geographical, historical, or differences. Analogy questions are often described as "A is to B as X is to Y." It is written as A:B :: X:Y.

The relationship are often found in this analogy App including: Part to Whole, Type to Category, Degree of Intensity, Function, Manner, Symbol or representation, Action and significance.

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