Assertion: winged grasshopper | /r/HasProperty | chorthippus biguttulus)—half
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Source sentences:
text: Ecologist Ulrike Lampe and her colleagues at Bielefeld University in Germany rounded up 188 male bow-winged grasshoppers (Chorthippus biguttulus)—half from quiet places, half from roadside spots—and exposed them to a female grasshopper.