Quantities
| P2370 | conversion to SI unit | 63072000 |
| P2442 | conversion to standard unit | 2 |
| P31 | instance of | ... | Q1790144 (unit of time) | unit of time |
| P111 | measured physical quantity | ... | Q2199864 (duration) | duration |
| P279 | subclass of | ... | Q1188986 (phase) | phase |
| P9059 | subdivision of this unit | ... | Q577 (year) | year |
| P2671 | Google Knowledge Graph ID | /g/122bfqfp |
| P12385 | Gran Enciclopèdia Catalana ID | bienni |
| P1296 | Gran Enciclopèdia Catalana ID (former scheme) | 0084379 |
| P7007 | Wolfram Language unit code | "Biennia" |
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