This file is indexed.

/usr/share/idzebra-2.0/tab/phrases-icu.xml is in idzebra-2.0-common 2.0.59-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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<icu_chain locale="en">
  <transform rule="[:Control:] Any-Remove"/>
  <tokenize rule="s"/>
  <transform rule="[:Punctuation:] Remove"/>
  <display/>
  <casemap rule="l"/>
</icu_chain>