text: SELECT COUNT(*)
  FROM
  tag as t,
  site as s,
  question as q,
  tag_question as tq
  WHERE
  t.site_id = s.site_id
  AND q.site_id = s.site_id
  AND tq.site_id = s.site_id
  AND tq.question_id = q.id
  AND tq.tag_id = t.id
  AND (s.site_name in ('graphicdesign'))
  AND (t.name in ('adobe-photoshop'))
  AND (q.score >= 0)
  AND (q.score <= 0)
  