Assertion: skylark's number | /r/HasProperty | proposed in eastern asia
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Source sentences:
text: In eastern Asia, a number of additional or alternative forms have been proposed, including saturata by Robert Ridgway in 1883, kamtschatica by Benedykt Dybowski in 1883, ambigua by Erwin Stresemann and mandschurica by Wilhelm Meise in 1934.