Assertion: vernal equinox | /r/CapableOf | mark astronomical start of spring
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Source sentences:
text: The Spring Equinox, or the Vernal Equinox as it's more formally known, marks the astronomical start of spring when the sun passes north through the Earth's equator.
text: The Spring Equinox, or the Vernal Equinox as it's more formally known, marks the astronomical start of spring when the sun passes north through the Earth's equator.