| Wikidata property to identify lighthouses | Q108765768 |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Portuguese_lighthouse_ID |
| P1896 | source website for the property | https://www.unc.edu/~rowlett/lighthouse/prt.htm |
| P10726 | class of non-item property value | Portuguese lighthouse identifier | Q50338586 |
| P17 | country | Portugal | Q45 |
| P2302 | property constraint | format constraint | Q21502404 |
| distinct-values constraint | Q21502410 | ||
| single-value constraint | Q19474404 | ||
| item-requires-statement constraint | Q21503247 | ||
| subject type constraint | Q21503250 | ||
| allowed-entity-types constraint | Q52004125 | ||
| property scope constraint | Q53869507 | ||
| P2668 | stability of property value | never changes | Q23611288 |
| P3563 | NGA lighthouse ID | related property | P1659 |
| Q50338586 | Portuguese lighthouse identifier | Wikidata property | P1687 |
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