Assertion: dragonfly | /r/CapableOf | grow to monster size
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Source sentences:
text: Some scientists theorize that high oxygen levels during the Paleozoic era allowed dragonflies to grow to monster size.
text: Scientists have said that high oxygen levels during the Paleozoic era may have allowed dragonflies to grow up to monster size.
text: Dragonflies could grow to monster size because of high oxygen levels during the Paleozoic era.