Distinct subjects for predicate ns4:bommen sorted by frequency
| Resource | Count |
|---|---|
| Consolidated PBY Catalina | 2 |
| Junkers Ju 87 | 2 |
| Supermarine Spitfire | 2 |
| B-17 Flying Fortress | 1 |
| B-24 Liberator | 1 |
| Hawker Typhoon | 1 |
| Heinkel He 111 | 1 |
| Messerschmitt Bf 109 | 1 |
| Mitsubishi A6M Zero | 1 |