# single child

> child without siblings

**Wikidata**: [Q636156](https://www.wikidata.org/wiki/Q636156)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Only_child)  
**Source**: https://4ort.xyz/entity/single-child


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. UMLS 2023
4. Quora
5. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)