function checkOperability(Data1, Data2) {
if(Data1 < Data2 ) {
return "Vessel A is operable in a sea with wave height of " + Data1 + "m, giving that its operational limit is " + Data2 + "m."
} else {
return "Vessel A is NOT operable in a sea with wave height of " + Data1 + "m, giving that its operational limit is " + Data2 + "m."
}
}