Phrases with «about one's existence»

Before the discovery, scientists only knew about the existence of 13 genes that determine hair color. (techtimes.com)
I just learned about the existence of smoked cardamom, from here, and will surely include it the next time I make these bars. (golubkakitchen.com)
Any film about artificial intelligence comes in - built with questions about existence, identity and the future of humanity. (timeout.com)
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