<prompt> Man - snail - crab man cycle is seen inParagonimus westermaniiFasciola hepaticaSchistosoma mansoniEchinococcus granulosus  <response>: ParasiteFirst intermediate hostSecond intermediate hostParagonimus westermaniFresh water snail Crab Cray fishDiphyllobothrium latumCopepods CyclopsFresh water fish Clonorchis sinensisSnail Fresh water fish Fasciola hepaticaSnail Aquatic vegetation Fasciolopsis buskiSnail Aquatic vegetation Ref: K.D Chatterjee 13th edition, p196-198 