model.add(Dense(9, activation='sigmoid', input_shape=(9,)))
model.add(Dense(27, activation='sigmoid'))
model.add(Dropout(0.25))
model.add(Dense(54, activation='sigmoid'))
model.add(Dropout(0.25))
model.add(Dense(27, activation='sigmoid'))
model.add(Dropout(0.25))
model.add(Dense(1, activation='sigmoid'))