Input (grade 13): Water consumption is so high that groundwater levels in the Sanaa basin are diminishing; because of this, government officials have proposed relocating large portions of the population of Sanaa to the coast of the Red Sea.
Output (grade 9): Water consumption is so high that groundwater levels in the Sanaa basin are diminishing. For this reason, government officials have proposed to move large portions of the population of Sanaa to the coast of the Red Sea.