cabana: indigenous hut or recreational structure

construction: process of the building or assembling of a building or infrastructure

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

Amazon rainforest: large rainforest in South America

group of humans: any set of human beings

Baldwin Locomotive Works: American manufacturer of railroad locomotives from 1825 to 1956

public works: broad category of infrastructure projects, financed and constructed by the government

road transport: collective term for all forms of transport which takes place on roads, or (ground) surface, except railroads

Porto Velho: the capital of the Brazilian state of Rondônia, in the upper Amazon River basin

Madeira River: river in Bolivia and Brazil

worker: person who works

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