The number of hydrogen bonds found are one to two times the number of oxygen atoms or, equivalently, between the number of oxygen atoms and the number of hydrogen atoms, consistent with previous studies. The maximum cycle sizes are in general close in number to the number of water molecules in the respective models. This demonstrates that the largest cycle often spans most, if not all, of the water molecules in the system. Each configuration can be described by a signature although these signatures can be quite long and therefore unwieldly to use for identification. Fortunately, using the signature length, the maximum cycle size, and the cycle count as indices was found to be generally sufficient to differentiate between the different PCMs covered in this study.