Fig. 4
From: Relative timing information and orthology in evolutionary scenarios
Left: \((G_{_{=}}(\mathcal {S}_1),\sigma )\) contains an induced path \(P_4 = a-b-c-a'\) on three colors with \(\sigma (a)= \sigma (a')\) as in Lemma 17. Right: \((G_{_{=}}(\mathcal {S}_2),\sigma ')\) contains an induced path \(P_4 = a-b-c-b'\) on three colors with \(\sigma '(b)= \sigma '(b')\) as in Lemma 18