lettuce production
... that China is the world's leader of lettuce production, producing approximately half of the world's lettuce?
... that China is the world's leader of <b id="mwEK0"><a href="./Lettuce_production_in_China" id="mwEK4" rel="mw:WikiLink" title="Lettuce production in China">lettuce production</a></b>, producing approximately half of the world's <a href="./Lettuce" id="mwEK8" rel="mw:WikiLink" title="Lettuce">lettuce</a>?