for line in ARGF
  next unless %r{<b>(\w\w\w\w)</b>(?: \((\w\w\w)\))? (.*?)<a href="(/wiki/[^"]*)"[^>]*>([^<]*)<(?:.*?<a href="(/wiki/[^"]*)"[^>]*>([^<]*))?} === line
  icao, iata, lead, page, name, page2, name2 = $1, $2, $3, $4, $5, $6, $7
  if /\(not $/ === lead
    page, name, page2, name2 = [page2, name2]
  end
  puts [icao, iata, page, name, page2, name2].join("\t")
end