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