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In many instances, several synonyms associated with the same Concept contain the same keyword. For example, | herniated structure |, | hernia |, | herniated tissue |, | herniated structure | and | herniation | all begin with "hernia". A search for the target Concept "hernia" would return the first phrase found during the search. Designing a filter that gives the user the option of filtering the results by description type such as the Preferred Term or the Fully Specified Name can significantly reduce the results, as illustrated in Figure 23.