SELECT DISTINCT p.page_id, p.page_title, p.page_namespace FROM wikidatawiki_p.page p WHERE p.page_id IN (

#to customize your query, follow the numbers to the instructions

#listed below the query. contact jmorgan@wikimedia.org if you need help.

SELECT r.rev_page

#1

FROM wikidatawiki_p.revision r 

WHERE r.rev_user_text IN

#3

(

 "Blahma",

 "Dominikmatus",

 "Harold",

 "Martin Kotačka",

 "TheWayThroughTheWoods"

) 

AND r.rev_timestamp BETWEEN 

#4

20160405150000 

AND 

#5

20160405180000

) AND page_namespace = 0