<<xlr8r.m

r={{(Overscript[A⇄B, ℰ]),(Subscript[k, 1]),(Subscript[k, 2]),(Subscript[k, 3])}, {A⇄∅,1,1},{B⇄∅,1,1}};

interpret[r][[1]]//TableForm

Q=jacobianMatrix[r];

MatrixForm[Q]