* Comparison
<M -->P>.
<M -->S>.
<S <-> P >?
6
* Analogy
<M -->P>.
<S<->M>.
<S --> P >?
6

* Comparison
<P -->M>.
<S -->M>.
<S <-> P >?
6
* Analogy
<P -->M>.
<S<->M>.
<P --> S>?
6

* Analogy
<M <->P>.
<S -->M>.
<S --> P >?
6
* Analogy
<M <->P>.
<M -->S>.
<P --> S >?
6
* Resemblance
<M <->P>.
<S<->M>.
<S <-> P>?
6