|context> => |testing algebra load>

|u> => algebra(|a> + |b>,|^>,|2>)
|x> => algebra(|a> + |b>,|^>,|3>)
|y> => algebra(|a> + |b>,|*>,|c> + |d>)
|z> => algebra(2|x> + 3| >,|*>,5|x> + 7| >)