  Recently, Gaberdiel and Gopakumar proposed that the two-dimensional WA_{N-1}
minimal model conformal field theory in the large N 't Hooft limit is dual to
the higher spin theories on the three-dimensional AdS space with two complex
scalars. In this paper, we examine this proposal for the WD_{N/2} and
WB_{(N-1)/2} minimal models initiated by Fateev and Lukyanov in 1988. By
analyzing the renormalization group flows on these models, we find that the
gravity duals in AdS space are higher spin theories coupled to two equally
massive real scalar fields. We also describe the large N 't Hooft limit for the
minimal model of the second parafermion theory.
