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A Japanese construction company (to plan) (to plan) to build a huge independent city-state, akin to the legendary Atlantis, in the middle of the Pacific Ocean. The city, dubbed "Marinnation," would (to have) about one million inhabitants, two airports, and possibly even a spaceport. Marinnation, if built, would (to be) a separate country but could (to serve) as a home for international organizations such as the United Nations and the World Bank.
Aside from the many political and social problems that would (to have) (to solve) , the engineering task envisaged (to be) monumental. The initial stage (to require) the building of a circular dam 18 miles in diameter attached to the seabed in a relatively shallow place in international waters.
Then several hundred pumps, operating for more than a year would (to suck out) the seawater from within the dam. When empty and dry the area would (to have) a city constructed on it. The actual land would (to be) about 300 feet below sea level. According to designers, the hardest task from an engineering point of view would (to be) (to ensure) that the dam (to be) leakproof and earthquake proof.
If all (to go) well, it (to hope) that Marinnation could (to be) ready for habitation at the end of the second decade of the twenty-first century. Whether anyone would (to want) (to live) in such an isolated and artificial community, however, will (to remain) an open question until that time.