10th-Sangad-P2937s.rb

#!/bin/env ruby

require 'csv'
require 'rest-client'

WIKIDATA_SPARQL_URL = 'https://query.wikidata.org/sparql'

def sparql(query)
  result = RestClient.get WIKIDATA_SPARQL_URL, accept: 'text/csv', params: { query: query }
  CSV.parse(result.body, headers: true, header_converters: :symbol)
rescue RestClient::Exception => e
  raise "Wikidata query #{query} failed: #{e.message}"
end

memberships_query = <<SPARQL
  SELECT ?item ?ps WHERE {
    ?item p:P39 ?ps .
    ?ps ps:P39 wd:Q42712773 .
    FILTER NOT EXISTS { ?ps pq:P2937 wd:Q29387197 }
  }
SPARQL

sparql(memberships_query).map(&:to_h).each do |row|
  puts [row[:item].split('/').last, 'P39', row[:ps].split('/').last, 'P2937', 'Q29387197'].join("\t")
end