See in this one ITTC Spectrum, energy of waves of this frequency and this frequency it is maximum no doubt, but it is somewhat spread. But in this one, you have got much more waves of only at that particular height, why it becomes important, we will see afterwards that if you have a structure which actually behaves badly in this wave, then obviously it is going to be a very badly JONSWAP Spectrum, that we will discuss when we talk about ship behavior in waves.