Assertion: whale's dive | /r/HasProperty | deep
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Source sentences:
text: Humpback whales spout (breathe) around 1-2 times per minute when the humpback whale is resting, and 4-8 times per minutes after the humpback whale has made a deep dive into the ocean.
text: The humpback whale gets its name from the way they curve their back before they go on a deep dive.
text: Tagging studies have shown that sperm whales hunt upside down at the bottom of their deep dives.