Optional entries for further assessment and use of the submissions beyond the initial training included supporting researchers like coworkers and endorsing colleagues as well as spectroscopic data on the free (or otherwise engaged) OH stretching vibration of the hydrate water (ν OH f ), the wavenumber and relative intensity of a potential resonance partner to ν OH b (possibly stealing intensity and shifting its band center), and any isotope substitution information or information on observed docking isomers.