  Poisson-Lie T-duality/plurality was recently generalized to Jacobi-Lie
T-plurality formulated in terms of Double Field Theory and based on Leibniz
algebras given by structure coefficients $f_{ab}{}^{c},f_{c}{}^{ab},$ and
$Z_a,Z^a$. We investigate three- and four-dimensional sigma models
corresponding to six-dimensional Leibniz algebras with $f_b{}^{ba}\neq 0$,
$Z^a=0$. We show that these algebras are plural one to another and, moreover,
to an algebra with $f_b{}^{ba}= 0$, $Z^a=0$. These pluralities are used for
construction of Jacobi-Lie models.
  It was conjectured that plural models should satisfy Generalized Supergravity
Equations. We have found examples of models satisfying ``true'' Generalized
Supergravity Equations where no trivialization to usual Supergravity Equations
is possible. On the other hand, we show that there are also models
corresponding to algebras with $f_b{}^{ba}\neq 0$, $Z^a=0$ where the Killing
vector appearing in Generalized Supergravity Equations either vanishes or can
be removed by suitable gauge transformation. Such models then satisfy usual
Supergravity Equations, i.e. vanishing beta function equations.
