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Quark Lepton Similarity

We propose the lepton mixing matrix at high energy scale to be connected to quark mixing matrix by the similar transformation. The similarity between CKM and PMNS significantly narrows down the ranges in physical parameters. The condition requires $\sinθ_{13}$ not to be larger than 0.15, masses to be of quasi-degenerate normal ordering, and $\tanβ$ to be large.