Btw. it seems you swapped the order of 'Examples' and 'Tests' on the webpage :D
$ python3 sequence_classification.py --rnn=LSTM --epochs=5 --hidden_layer=50
Epoch 1/5 loss: 0.6828 - accuracy: 0.5167 - val_loss: 0.6590 - val_accuracy: 0.5178
Epoch 2/5 loss: 0.6441 - accuracy: 0.5408 - val_loss: 0.6303 - val_accuracy: 0.5264
Epoch 3/5 loss: 0.6227 - accuracy: 0.5565 - val_loss: 0.6145 - val_accuracy: 0.5573
Epoch 4/5 loss: 0.6108 - accuracy: 0.5579 - val_loss: 0.6020 - val_accuracy: 0.5617
Epoch 5/5 loss: 0.5932 - accuracy: 0.5699 - val_loss: 0.5876 - val_accuracy: 0.5717
Cheers.