split[
      pipe[ ExtractItems[:kosapi_people, from: :exams, attr: :examiner], ConvertPeople, Sync[Person] ],
      pipe[ ExtractItems[:kosapi_courses, from: :exams, attr: :course], ConvertCourses, Sync[Course] ],
      pipe[ ExtractItems[:kosapi_rooms, from: :exams, attr: :room], ConvertRooms, Sync[Room] ],
      Sync[Event, matching_attributes: [:faculty, :source_type, :source_id, :absolute_sequence_number]]