All building chains buildable?

[jirisys]

You can have multiple upgrades for a single building level. The first building level must be built first, but afterwards that building can be upgraded into whatever building that you want. Just check it out in the EDB.

Foot

I meant that the government buildings are in one building tree, but as soon as the precursor is built, you can build all 4 chains, and that is what I was asking about. How can you build any of the 4 chains AND then not be able to build another government type?

~Jirisys ()