Final answer:
Vahan was treated as a prisoner by the soldier while he was in Selim Bey's stable.
Step-by-step explanation:
The soldier treated Vahan as a prisoner while he was in Selim Bey's stable. Selim Bey was a Turkish noble and soldier who had fought against the Ottoman empire. Vahan was one of the prisoners captured by Selim Bey's soldiers and was kept in the stable. Since Vahan was a prisoner, it is likely that he was not treated well by the soldier and was kept under strict supervision.