to which artistic movement did the artist of the two watermills and an open sluice near singraven belong ?
select distinct var_uri where brack_open dbr_Two_Watermills_and_an_Open_Sluice_near_Singraven dbo_author var_person sep_dot var_person dbo_movement var_uri sep_dot var_person rdf_type dbo_Artist brack_close