I want to know the answer to the following question:
How many contrastive aspirated fricatives does Choni Tibetan have?
All the background I'm provided with is that "Although most aspirated obstruents in the world's language are stops and affricates, aspirated fricatives such as [sʰ], [fʰ] or [ɕʰ] have been documented in Korean, in a few Tibeto-Burman languages, in some Oto-Manguean languages, and in the Siouan language Ofo.". Is that enough to answer the question?