{"result":{"text":"begin mathsize 14px style b with rightwards arrow on top cross times c with rightwards arrow on top equals b with rightwards arrow on top cross times d with rightwards arrow on top rightwards double arrow a with rightwards arrow on top cross times open parentheses b with rightwards arrow on top times c with rightwards arrow on top close parentheses equals a with rightwards arrow on top cross times open parentheses b with rightwards arrow on top cross times d with rightwards arrow on top close parentheses end style"},"status":"ok"}