{
const subs = {
x: "{{}_{a}^{b}o^c_d}",
a: "{{}_{a}^{b}o_d}",
b: "{{}_{a}^{b}o^c}",
c: "{{}^{b}o^c_d}",
d: "{{}_{a}o^c_d}"
};
let s = "x";
for (let i = 0; i < 6; i++) {
s = s.replace(/[abcdx]/g, (r) => subs[r]);
}
let div = d3.create("div");
div.append(() => tex`${s}`);
return div.node();
return tex`${s}`;
}