Package: file
Version: 1:5.35-2
Severity: wishlist

There exists a compact binary format for semantic web data following the
RDF (Resource Description Format) that is called HDT.

The format is described at [1], and example data is available at [2];
its media type is registered at [3].

A working rule set for those files I'd suggest is:

    0 string $HDT HDT file (binary compressed indexed RDF triples)
    !:mime application/vnd.hdt

I'm not sure whether `file` keeps track of common file extensions; if
it's relevant: such files typically have names ending with `.hdt`.

[1]: http://www.rdfhdt.org/hdt-internals/
[2]: http://gaia.infor.uva.es/hdt/swdf-2012-11-28.hdt.gz
[3]: https://www.iana.org/assignments/media-types/application/vnd.hdt


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.20.0-trunk-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages file depends on:
ii  libc6      2.28-5
ii  libmagic1  1:5.35-2
ii  zlib1g     1:1.2.11.dfsg-1

file recommends no packages.

file suggests no packages.

-- no debconf information

-- 
To use raw power is to make yourself infinitely vulnerable to greater powers.
  -- Bene Gesserit axiom

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