Finally, it should be noted that despite the name, the proposed syntax is not restricted to applications in deep learning. Any machine-learning method that operates on SMILES strings may benefit from the syntax changes introduced, including methods such as genetic algorithms, n-gram analysis, or grammatical evolution. Even within the field of deep learning, the potential applications are not restricted to generative models -if the proposed syntax proves to be easier for a DNN to learn, it may be of use for any method that tries to relate the structure to a property.