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  wdq 'SELECT * WHERE { ?c wdt:P361 wd:Q544 }'  # equivalent
  wdq < queryfile

=head2 lookup

Read Wikidata entity ids, URLs, or Wikimedia project URLs from STDIN or
arguments. Result fields are C<label>, C<description>, and C<id>:

  wdq Q1
  wdq lookup Q1                                 # equivalent
  echo Q1 | wdq lookup                          # equivalent
  wdq http://de.wikipedia.org/wiki/Universum    # same result

=encoding utf8

=head2 search / psearch

Search for items or properties. Result fields are C<label>, C<id>,
C<description>, and possibly matched C<alias>. Search and result language is
read from environment or option C<--language>/C<-g>:

  wdq search -g sv Pippi LÃ¥ngstrump

Default output format in search mode is C<text>.

=head1 OPTIONS

=over

=item --query|-q QUERY

Query or query file (C<-> for STDIN as default)

=item --format|-f FORMAT|TEMPLATE

Output format or string template. Call C<wdq help formats> for details.

=item --export EXPORTER

Use a L<Catmandu> exporter as output format.

=item --no-header|-H

Exclude header in CSV output or other exporter.

=item --enumerate|-e

Enumerate results by adding a counter variable C<n>

=item --limit INTEGER

Add or override a LIMIT clause to limitate the number of results. Single-digit
options such as C<-1> can also be used to also set a limit.

=item --ids|-i

Abbreviate Wikidata identifier URIs as strings.

=item --language|-g

Language to query labels and descriptions in. Set to the locale by default.
This option is currentl only used on lookup mode.

=item --count|-c VARS

Prepend SPARQL QUERY to count distinct values

=item --label|-l VARS

=item --description|-d VARS

=item --text|-t VARS

Add label, description, or both. Adds C<label>/C<description> for variable C<id>
or C<xLabel>/C<xDescription> for any C<x>.

=item --ignore

Ignore empty results instead of issuing warning and exit code.

=item --color|-C

By default output is colored if writing to a terminal. Disable this with
C<--no-color>, C<--monochrome>, or C<-M>. Force color with C<--color> or C<-C>.

=item --api URL

SPARQL endpoint. Default value:
C<https://query.wikidata.org/bigdata/namespace/wdq/sparql>

=item --no-mediawiki|-m

Don't query MediaWiki API to map URLs to Wikidata items.

=item --no-execute|-n

Don't execute SPARQL queries but show them in expanded form. Useful to
validate and pretty-print queries. MediaWiki API requests may be

=item -N

Don't execute any queries. Same as C<--no-mediawiki --no-execute>.

=item --help|-h|-?

Show usage help

=item --ontology

Show information about the Wikidata Ontology

=item --no-default-prefixes

Don't add default namespace prefixes to the SPARQL query

=item --man

Show detailled manual

=item --version|-V