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Flexible in example sentence

Imagine that we build an enclosure where we put it just underwater, and we fill it with wastewater and some form of microalgae that produces oil, and we make it out of some kind of flexible material that moves with waves underwater, and the system that we're going to build, of course, will use solar energy to grow the algae, and they use CO2, which is good, and they produce oxygen as they grow.
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