Checking the disequalities $d \neq f(e)$ and $a \neq f(c)$ leads to the result that the assignment is SAT, since neither $d$ and $f(e)$ nor $a$ and $f(c)$
Checking the inequalities $d \neq f(e)$ and $a \neq f(c)$ leads to the result that the assignment is SAT, since neither $d$ and $f(e)$ nor $a$ and $f(c)$
Checking the disequalities $o \neq k$, $f(m)\neq k$, $m \neq f(m)$ leads to the result that the assignment is UNSAT, since $o$ and $k$, $f(m)$ and $k$, $m$ and $f(m)$
Checking the inequalities $o \neq k$, $f(m)\neq k$, $m \neq f(m)$ leads to the result that the assignment is UNSAT, since $o$ and $k$, $f(m)$ and $k$, $m$ and $f(m)$