  The antiquark-diquark-diquark model describes pentaquark states both in terms
of quarks and hadrons. We discuss pentaquark states with hidden charm $P(\bar c
cuud)$ discovered in the $J/\Psi p$ spectrum by the LHCb collaboration. We
consider three pentaquark states as members of the lowest ($S$-wave) multiplet
and discuss the mass splitting scheme. The latest LHCb data for pentaquarks
with hidden charm provide an opportunity to make an assumption about the
diquark content of the pentaquark states. We give a classification for the LHCb
pentaquarks and define recombination channels for these states.
