6. A text anonymizing apparatus according to claim 5 , wherein: the anonymizing unit further causes the storage device to store anonym correspondence information associating, among the words included in the character string included in each of the plurality of pieces of text data, a word matching at least some of the extracted words and not matching words forming the extracted combination of words, and an anonym word created by anonymizing the word, and further acquires, when a word matching the anonym word included in the anonym correspondence information is included in the analysis result information analyzed by the analyzing unit, real name analysis result information obtained by replacing the word with a word associated with the matching anonym word from the anonym correspondence information; and the text anonymizing apparatus further comprises a real-name-analysis-result-output processing unit which outputs the real name analysis result information to the output device.
5. A text anonymizing apparatus according to claim 1 , further comprising: an analyzing unit which analyses text data including the anonymized word and acquires analysis result information; and an analysis-result-output processing unit which outputs the acquired analysis result information to the output device.