Recently Azerbaijan turned off natural gas and electricity to Artsakh. Just because they can. It took a few days to get the power back on. And the gas pipeline was "repaired" after that. And all this during the winter, impacting over 120,000 people and 30,000 children.
These children continue learning 3D modeling (until batteries give out) during the current Azerbaijan blockade of Artsakh.
How do you define perseverance?