/usr/share/doc/frown-doc/examples/manual/ is in frown-doc 0.6.2.3-4.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/frown-doc/examples/manual/Calc.lg
/usr/share/doc/frown-doc/examples/manual/Let1.lg
/usr/share/doc/frown-doc/examples/manual/Let2.lg
/usr/share/doc/frown-doc/examples/manual/Let3.lg
/usr/share/doc/frown-doc/examples/manual/Let4.lg
/usr/share/doc/frown-doc/examples/manual/Let5.lg
/usr/share/doc/frown-doc/examples/manual/Let6.lg
/usr/share/doc/frown-doc/examples/manual/Let7.lg
/usr/share/doc/frown-doc/examples/manual/Let8.lg
/usr/share/doc/frown-doc/examples/manual/Lexer.lhs
/usr/share/doc/frown-doc/examples/manual/MCalc.lg
/usr/share/doc/frown-doc/examples/manual/MLexer1.lhs
/usr/share/doc/frown-doc/examples/manual/MLexer2.lhs
/usr/share/doc/frown-doc/examples/manual/MLexer3.lhs
/usr/share/doc/frown-doc/examples/manual/Paren1.lg
/usr/share/doc/frown-doc/examples/manual/Paren2.lg
/usr/share/doc/frown-doc/examples/manual/Paren3.lg
/usr/share/doc/frown-doc/examples/manual/Reader.lhs
/usr/share/doc/frown-doc/examples/manual/RepMin.lg
/usr/share/doc/frown-doc/examples/manual/Result.lhs
/usr/share/doc/frown-doc/examples/manual/Sessions.lhs
/usr/share/doc/frown-doc/examples/manual/Terminal1.lhs
/usr/share/doc/frown-doc/examples/manual/TestFrown.lhs
/usr/share/doc/frown-doc/examples/manual/VarCalc.lg
/usr/share/doc/frown-doc/examples/manual/VarParen.lg