| 摘要 |
A cursor position determination unit 101 determines that a cursor 201 has been aligned, for instance, on an object 206 among a plurality of objects 202 to 209 . Then, an object selection determination unit 105 receives selection instruction information indicating the selection of the object onto which the cursor 201 has been aligned, and determines that the object has been selected, while at the same time, an adjacent object determination unit 106 determines an adjacent object, which is adjacent to the selection object. An object validation determination unit 107 does not accept validation instruction information about to be mistakenly input for the adjacent object, as the validation instruction information for the adjacent object.
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