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. 2022 Jun 21;84(8):76. doi: 10.1007/s11538-022-01037-z

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Fig. 2 — The network N on the set of taxa ${a, b, c, d}$ has a cherry (a, b) and a reticulated cherry (d, c). The networks N(b, a) and N(d, c) are the networks obtained by reducing the respective pair from N