Advanced Search (Items only)
Number of rows in "Narrow by Specific Fields": 1
Filter this search for items with the selected relation. For example, when selecting "Subject" items with the "hasPart" relation, the search will return all items that have parts. When selecting "Object" items with the same relation, the search will return all items that are parts of other items.
Filter this search for items being "Subject" (or "Object", respectively) in relations that contain a certain text portion in their comments.