sentences:  After this, the player on move may trade resources with their opponent, or with the bank at a ratio of three-to-one, build to expand their settlement, or play cards from their hand.In building, players use resources to build roads, which are played to the left and right of settlements, improvements, which are played above and below settlements, or additional settlements, which are played next to roads.When paying resources, resources may be taken from any combination of resource fields.