Sketch three examples of connected four-point ((n=4)) Feynman diagrams in (phi^{3}) theory contributing to the left-hand side

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Sketch three examples of connected four-point \((n=4)\) Feynman diagrams in \(\phi^{3}\) theory contributing to the left-hand side of Eq. (7.5.37). Show that each diagram can be uniquely identified as a contribution to the right-hand side.

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