  Here, we consider the Bell experiment for a system described by multipartite
states in the case where n-dichotomic observables are measured per site. If n
is two, we consider a two-setting Bell experiment. If n is three, we consider a
three-setting Bell experiment. Twosetting model is an explicit local realistic
model for the values of a correlation function, given in a two-setting Bell
experiment. Three-setting model is an explicit local realistic model for the
values of a correlation function, given in a three-setting Bell experiment. In
the non-contextual scenario, there is not the difference between three-setting
model and two-setting model. And we cannot classify local realistic theories in
this case. This says that we can construct three-setting model from two-setting
model. Surprisingly we can discuss incompleteness in the Bell theorem using
non-contextual model. On the other hand, in the contextual scenario, there is
the difference between three-setting model and two-setting model. This says
that we must distinguish three-setting model from two-setting model. And we can
classify local realistic theories in this case.
