label: an O-acyl-(R)-carnitine(in) + (R)-carnitine(out) => an O-acyl-(R)-carnitine(out) + (R)-carnitine(in)
label_lc: an o-acyl-(r)-carnitine(in) + (r)-carnitine(out) => an o-acyl-(r)-carnitine(out) + (r)-carnitine(in)