trunk: main wooden axis of a tree

rafter: structural member in architecture

canoe: light boat that is paddled

building: structure, typically with a roof and walls, standing more or less permanently in one place

residential building: building mainly used for residential purposes

Amazon rainforest: large rainforest in South America

river: larger natural watercourse

Madeira River: river in Bolivia and Brazil

vegetation: total of plant formations and plant communities

railway: interconnected network of infrastructure and vehicles used for train rail transport