Eq2.dne

{B},{J},{}
{B},{J},{E}
{B},{J},{A}
{B},{J},{A,E}

{J},{M},{}
{J},{M},{E}
{J},{Y},{}
{J},{M},{A}
{J},{Y},{A}
{J},{Y},{A,E}

{B},{E},{}
{B},{E},{X}
{X},{E},{}
{B},{E},{A}
{X},{E},{A}
{B},{E},{M}
{B},{E},{X,M}

{J,B},{M},{A}
{J,B},{E},{A}
{B,J},{E},{A}
{B,J},{M},{}

n

Ex.dne

{X},{Y},{}
{X},{Y},{A}
{X},{Y},{B}
{X},{Y},{C}
{X},{Y},{A,B}
{X},{Y},{B,C}
{X},{Y},{A,C}
{X},{Y},{A,B,C}

{X,B},{Y},{}
{X,A},{Y},{}
{X,B},{Y,C},{}

q