I get an error when submitting the following query, which works with "limit 200".
SELECT DISTINCT ?item ?url WHERE { ?item ?prop ?claim. ?claim prov:wasDerivedFrom [ pr:P854 ?url] FILTER (regex(STR(?url),"(\\?|&)(fbclid|gclid|utm_source|utm_medium|utm_campaign|utm_term|utm_content)"))} limit 500