/usr/include/opengm/datastructures/ is in libopengm-dev 2.3.6+20160905-1build2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/opengm/datastructures/buffer_randomaccessset.hxx
/usr/include/opengm/datastructures/buffer_vector.hxx
/usr/include/opengm/datastructures/fast_sequence.hxx
/usr/include/opengm/datastructures/indicator_variable.hxx
/usr/include/opengm/datastructures/linear_constraint.hxx
/usr/include/opengm/datastructures/marray/
/usr/include/opengm/datastructures/marray/marray.hxx
/usr/include/opengm/datastructures/marray/marray_hdf5.hxx
/usr/include/opengm/datastructures/partition.hxx
/usr/include/opengm/datastructures/randomaccessset.hxx
/usr/include/opengm/datastructures/sparsemarray/
/usr/include/opengm/datastructures/sparsemarray/sparsemarray.hxx