Assertion: crab apple | /r/HasProperty | its wild ancestors
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Source sentences:
text: The large, sweet apple familiar in modern times is essentially a cultivated product, much changed from the tiny, sour fruits, such as those of the crabapple, which were its wild ancestors...
text: Known also as crab trees, crabs, wild apples, and schoolboy apples, crabapples belong to the Rosaceae, or rose family.
text: Crab apples, which are also known as wild apples, are fruits that are tangy and tart.