Assertion: brown chested martin | /r/HasProperty | progne tapera
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Source sentences:
text: The Brown-chested Martin (Progne tapera) is a species of bird in the Hirundinidae family.
text: We just got back from Cumberland Farms, Halifax, MA where we saw the Brown-chested Martin (Progne tapera) a very rare bird, initially discovered on Monday, the 12th, by Marshall Iliff and Jeremiah Trimble.