"value" = ((((-1 * "foo") * 2.0) + ("bar" / 6.1234)) - ("x" ^ 2.0))
(value = -1 * 1 * foo * 2 + bar / 6.1234 - (x ^ 2))
{"op":"=","args":[{"property":"value"},{"op":"-","args":[{"op":"+","args":[{"op":"*","args":[{"op":"*","args":[{"op":"*","args":[-1.0,1.0]},{"property":"foo"}]},2.0]},{"op":"/","args":[{"property":"bar"},6.1234]}]},{"op":"^","args":[{"property":"x"},2.0]}]}]}