boolean issue

I have an issue with a boolean. It's showing up as true when supposed to be false any help? All the variables in the arrays are rigidbodies and are declared in the inspector. It's showing firstPhrase as true when its supposed to be false.

 var a = [ab, ac, ad, ae, af, ag];
 var b = [ba, bc, bd, be, bf, bg];
 var c = [ca, cb, cd, ce, cf, cg];
 var d = [da, db, dc, de, df, dg];
 var e = [ea, eb, ec, ed, ef, eg];
 var f = [fa, fb, fc, fd, fe, fg];
 var allObjects = [a, b, c, d, e, f];
         var theLetter = allObjects[Random.Range(0,allObjects.Length)];
     var thePhrase = theLetter[Random.Range(0,theLetter.Length)];
 
  
     var spawn = Instantiate(thePhrase, Vector3(-0.27, -0.55,0), Quaternion.identity);
    
 if(spawn == ab || ba || ca || da || ea || fa){
         firstPhrase = true;
     }else if (spawn !== ab || ba || ca || da || ea || fa){
         firstPhrase = false;
     }