11.   One, its government has renewed, in a convincing way, its determination to keep its currency, the peso, pegged directly to the dollar.

12.   Or at least no one has been convincing one way or another.

13.   Other common cold home remedies include the herb echinacea and vitamin C, although the medical studies are not convincing one way or another about their effectiveness.

14.   There could not have been a more convincing way to do it.