Help with OGNL

Hey Guys,

I am trying to make a form with vRO Presentation and i want a value to be displayed on a condition
so I am using Show Parameter Property
So the condition is

if var1 contains abc display var2

else do not display var2

So if var1 = sfsoabcada its a yes and if var1 = qwerty its a no

Can someone help me with a OGNL expression for this?

-RIshab