/usr/lib/hugs/packages/base/Data/ is in libhugs-base-bundled 98.200609.21-5.3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/hugs/packages/base/Data/Array/
/usr/lib/hugs/packages/base/Data/Array.hs
/usr/lib/hugs/packages/base/Data/Array/Base.hs
/usr/lib/hugs/packages/base/Data/Array/Diff.hs
/usr/lib/hugs/packages/base/Data/Array/IArray.hs
/usr/lib/hugs/packages/base/Data/Array/IO/
/usr/lib/hugs/packages/base/Data/Array/IO.hs
/usr/lib/hugs/packages/base/Data/Array/IO/Internals.hs
/usr/lib/hugs/packages/base/Data/Array/MArray.hs
/usr/lib/hugs/packages/base/Data/Array/ST.hs
/usr/lib/hugs/packages/base/Data/Array/Storable.hs
/usr/lib/hugs/packages/base/Data/Array/Unboxed.hs
/usr/lib/hugs/packages/base/Data/Bits.hs
/usr/lib/hugs/packages/base/Data/Bool.hs
/usr/lib/hugs/packages/base/Data/ByteString/
/usr/lib/hugs/packages/base/Data/ByteString.hs
/usr/lib/hugs/packages/base/Data/ByteString/Base.hs
/usr/lib/hugs/packages/base/Data/ByteString/Base.so
/usr/lib/hugs/packages/base/Data/ByteString/Char8.hs
/usr/lib/hugs/packages/base/Data/ByteString/Fusion.hs
/usr/lib/hugs/packages/base/Data/ByteString/Lazy/
/usr/lib/hugs/packages/base/Data/ByteString/Lazy.hs
/usr/lib/hugs/packages/base/Data/ByteString/Lazy/Char8.hs
/usr/lib/hugs/packages/base/Data/Char.hs
/usr/lib/hugs/packages/base/Data/Complex.hs
/usr/lib/hugs/packages/base/Data/Dynamic.hs
/usr/lib/hugs/packages/base/Data/Either.hs
/usr/lib/hugs/packages/base/Data/Eq.hs
/usr/lib/hugs/packages/base/Data/Fixed.hs
/usr/lib/hugs/packages/base/Data/Foldable.hs
/usr/lib/hugs/packages/base/Data/FunctorM.hs
/usr/lib/hugs/packages/base/Data/Graph.hs
/usr/lib/hugs/packages/base/Data/HashTable.hs
/usr/lib/hugs/packages/base/Data/IORef.hs
/usr/lib/hugs/packages/base/Data/Int.hs
/usr/lib/hugs/packages/base/Data/IntMap.hs
/usr/lib/hugs/packages/base/Data/IntSet.hs
/usr/lib/hugs/packages/base/Data/Ix.hs
/usr/lib/hugs/packages/base/Data/List.hs
/usr/lib/hugs/packages/base/Data/Map.hs
/usr/lib/hugs/packages/base/Data/Maybe.hs
/usr/lib/hugs/packages/base/Data/Monoid.hs
/usr/lib/hugs/packages/base/Data/Ord.hs
/usr/lib/hugs/packages/base/Data/PackedString.hs
/usr/lib/hugs/packages/base/Data/Queue.hs
/usr/lib/hugs/packages/base/Data/Ratio.hs
/usr/lib/hugs/packages/base/Data/STRef/
/usr/lib/hugs/packages/base/Data/STRef.hs
/usr/lib/hugs/packages/base/Data/STRef/Lazy.hs
/usr/lib/hugs/packages/base/Data/STRef/Strict.hs
/usr/lib/hugs/packages/base/Data/Sequence.hs
/usr/lib/hugs/packages/base/Data/Set.hs
/usr/lib/hugs/packages/base/Data/Traversable.hs
/usr/lib/hugs/packages/base/Data/Tree.hs
/usr/lib/hugs/packages/base/Data/Tuple.hs
/usr/lib/hugs/packages/base/Data/Typeable.hs
/usr/lib/hugs/packages/base/Data/Unique.hs
/usr/lib/hugs/packages/base/Data/Version.hs
/usr/lib/hugs/packages/base/Data/Word.hs