Sketch three examples of connected two-point ((n=2)) Feynman diagrams with 10 vertices in (phi^{4}) theory that contribute

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Sketch three examples of connected two-point \((n=2)\) Feynman diagrams with 10 vertices in \(\phi^{4}\) theory that contribute to \(D_{F}(p)\). Show that these can be uniquely identified with contributions to the right-hand side of Eq. (7.5.49).

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