  In this paper we study the three-point correlation functions of two scalar
operators with large conformal dimensions and the R-current or stress-energy
tensor at strong coupling with the help of the AdS_4/CFT_3 correspondence. The
scalar operators are dual to semiclassical strings in AdS_4 x CP^3, which are
point-like in AdS. We establish thorough concordance between string theory
results at large coupling constant and general predictions coming from Ward
identities in the dual three-dimensional superconformal gauge theory.
