Assertion: wren | /r/HasProperty | good at one thing
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Source sentences:
text: We love wrens, and there are lots of things to love about them even as we’re finding out that in the midst of those species we’ve known for so long lie cryptic species within species, differentiated by song and subtlety, which is fine because it wrens are good at one thing it’s singing and many are anything but subtle in their attitudes.