| 摘要 |
An apparatus and method for matching socks or other substantially identical objects comprises a first sock with a first symbol disposed on it and a second sock with a second symbol disposed on it. The second symbol is non-identical to and associated with the first symbol. The symbols may be associated with each other by comprising a query and response, different representations of the same concept, two parts of a whole, source or origin, and other associations. The apparatus and method assist in matching as well as in teaching desired concepts.
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