Question: How many Qianhu offices were there?
Sentence: The Mingshi states that administrative offices were set up under these high commanderies, including one Itinerant Commandery, three Pacification Commissioner's Offices, six Expedition Commissioner's Offices, four Wanhu offices (myriarchies, in command of 10,000 households each) and seventeen Qianhu offices (chiliarchies, each in command of 1,000 households).
Answer in sentence: yes