15. The medium of claim 14 , wherein two or more phrases of the longest phrases from which the different text item can be constructed have the same number of words, the method further comprising: determining a respective confidence measure for each of the two or more phrases; identifying a phrase of the two or more phrases that has a largest confidence measure among the two or more phrases; and selecting the identified phrase.
15. The medium of claim 14 , wherein two or more phrases of the longest phrases from which the different text item can be constructed have the same number of words, the method further comprising: determining a respective confidence measure for each of the two or more phrases; identifying a phrase of the two or more phrases that has a largest confidence measure among the two or more phrases; and selecting the identified phrase. 16. The medium of claim 15 , wherein determining the respective confidence measure for each of the two or more phrases comprises: determining a respective frequency of occurrence of each phrase in the plurality of first text items received from the trusted source.