Here are some questions I have:

1. When trading 4 of a kind can you trade a mixture of resources and commodities (such as 3 sheep and 1 cloth), or does it have to be 4 sheep or 4 cloth?

2. When purchasing standard things such as roads, settlements, cities, etc., can you use the corresponding commodities to make your purchase?

3. When no one has cities left, does the barbarian still move?

4. If yes to the above, and the barbarian attacks, is a victory point still awarded to the one with the highest knight strength?

Thanks,

-Kojow