Improve and define the structure to describe human relationship.
The participants listed below can be notified using the following template in discussions:
|father||P22||Item||father: male parent of the subject. For stepfather, use "stepparent" (P3448)||George Washington <father> Augustine Washington||child|
|mother||P25||Item||mother: female parent of the subject. For stepmother, use "stepparent" (P3448)||George Washington <mother> Mary Ball Washington||child|
|child||P40||Item||child: subject has object as child. Do not use for stepchildren||George Washington <child> John Parke Custis||father, mother and parent|
|sibling||P3373||Item||sibling: the subject and the object have the same parents (brother, sister, etc.); use "relative" (P1038) for siblings-in-law (brother-in-law, sister-in-law, etc.) and step-siblings (step-brothers, step-sisters, etc.)||George Washington <sibling> Samuel Washington||sibling|
|spouse||P26||Item||spouse: the subject has the object as their spouse (husband, wife, partner, etc.). Use "unmarried partner" (P451) for non-married companions||George Washington <spouse> Martha Washington||spouse|
|unmarried partner||P451||Item||cohabitor: someone with whom the person is in a relationship without being married. Use "spouse" (P26) for married couples||Simone de Beauvoir <unmarried partner> Jean-Paul Sartre||unmarried partner|
|relative||P1038||Item||kinship: family member (qualify with "type of kinship", P1039; for direct family member please use specific property)||Moulay Ali Cherif <relative> Al Hassan Addakhil||-|
|kinship to subject||P1039||Item||kinship: qualifier of "relative" (P1038) to indicate less usual family relationships (ancestor, son-in-law, adoptions, etc). Indicate how the qualificator item is related to the main item.||Indira Gandhi <kinship to subject> daughter-in-law||-|
|stepparent||P3448||Item||stepparent: subject has the object as their stepparent||Marcus Aurelius <stepparent> Antoninus Pius||-|
Terms may be specific to some languages and all translate to "relative" or "in-law" in English.
- Wikidata:Database reports/top missing properties by number of sitelinks/P26 spouse (P26) for people who died
- Wikidata:Database reports/top missing properties by number of sitelinks/P22 items for people without any of father (P22), child (P40), spouse (P26), mother (P25), sibling (P3373), family (P53), relative (P1038), unmarried partner (P451)
- SPARQL for list of used relatives in kinship to subject (P1039) (results are in Polish but it is easy to change it before query is executed)