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  "body": "\n## Statement\n\nAn important conjecture related to the triangular cactus is the **Rosa's Conjecture**, named after **Alexander Rosa**, which says that all triangular cacti are graceful or nearly-graceful. More precisely\n\n*All triangular cacti with t ≡ 0, 1 mod 4 blocks are graceful, and those with t ≡ 2, 3 mod 4 are near graceful.*\n",
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