Task: Text Simplification
Input (English): it is the third-largest subdivision of china spanning about 1,200,000 km ² -lrb- 463,000 sq mi -rrb- or 12 % of china 's land area.
Output (English): it is the third-largest part of china , taking up about 1,200,000km2 -lrb- 463,000 sq mi -rrb- , or 12 % of china 's land size.