# question mark

> punctuation sign marking a question

**Wikidata**: [Q11169](https://www.wikidata.org/wiki/Q11169)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Question_mark)  
**Source**: https://4ort.xyz/entity/question-mark


## References

1. Freebase Data Dumps. 2013
2. [Source](https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1677-1-200910-I!!PDF-E.pdf)