public Mutation setRainfall(float minRainfall, float maxRainfall) {
this.minRainfall = minRainfall;
this.maxRainfall = maxRainfall;
EnumHumidity temp1 = EnumHumidity.getFromValue(minRainfall);
EnumHumidity temp2 = EnumHumidity.getFromValue(maxRainfall);
if(temp1 != temp2)
specialConditions.add(String.format("Humidity between %s and %s.", temp1, temp2));
else
specialConditions.add(String.format("Humidity %s required.", temp1));