It is the people that make a career. Generate income for the people. Because of the construction of buildings in the sea. A difficult task. A time when the working class is a lot.
It is a work that makes people have careers. Generate revenue to the public because of the construction of buildings in the desert is difficult from time to time that a large number of labourers.
It is a work to do, and people have made career income, because the construction of structures in the sea is a difficult task at a time of a lot of labor.