Question: clear one variable in maple


i want clear ss variable but i can not do it please help me.

my code:


a := Matrix([1, 2, 3, 4, 5]); S := {}; ss := {};

for k to 5 do

S := `union`(S, {op(DirectSearch:-SolveEquations([a(1, k)*x+2+y = 0, x+y = 0])[3])});

ss := map(proc (c) options operator, arrow; rhs(c) end proc, S);

aaa := op(ss[[1]]); bbb := op(ss[[2]]);

"i want clear ss and then make ss as ss:={} in loop"

"for example if clear command clear ss variable"



end do

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