| Language: | Nivkh |
| Feature: | Indefinite Pronouns by Martin Haspelmath |
| Value: | Interrogative-based |
| siḍ | 'what' | siḍ-lu | 'something' |
| aŋ | 'who' | aŋ-lu | 'somebody' |
| řain | 'where' | řain-lu | 'somewhere' |
| řaḍ | 'which' | řaḍ-lu | 'some' |