| 摘要 |
A first utterance of words made by a user is received. A first at least one word in the first utterance is recognized with high confidence. A second at least one word in the first utterance is recognized with less-than-high confidence. A content library is searched for a plurality of items that contain the first at least one word recognized with high confidence. One or more topics, including a first topic, is determined based on the plurality of items. One or more sub-topics associated with the first topic is determined based on the second at least one word recognized with less-than-high confidence. The first topic and the one or more sub-topics are displayed to the user.
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