The government-owned gas company has begun selling stoves and other gas appliances to create a larger market for its gas.
Conclusion
The government-owned gas company is within its rights to sell stoves and other gas appliances.
Evidence
A private gas company would be allowed to sell such appliances without anyone seeing anything wrong with it.
Evaluate
The argument leaps from "a private gas company would be allowed to" to That works only if government-owned companies have the same rights as private ones (in this domain). The argument needs a principle that licenses transferring permissions from private companies to government-owned companies.
Goal
Find an answer that says: government-owned companies have the right to do what private businesses have the right to do.