oxalate(out) + sulfate(in) => oxalate(in) + sulfate(out)
oxalate(out) + sulfate(in) => oxalate(in) + sulfate(out)
oxalate(out) + sulfate(in) => oxalate(in) + sulfate(out)
oxalate(out) + sulfate(in) => oxalate(in) + sulfate(out)