Robocrystallographer is a tool that reads in a .cif card in order to produce a humaninterpretable text description of the structure. In this study, all the .cif cards were obtained from the Materials Project . Rather than generating structural descriptions for all 146,323 materials in the Materials Project, we only generated descriptions for materials that were likely to be thermodynamically stable. In order to screen out unstable structures, we used the decomposition enthalpy as a proxy for stability. Decomposition enthalpy is calculated as the total energy difference between a given compound and competing compounds in a given chemical space . This decomposition enthalpy is attained by constructing a convex hull in formation enthalpy composition space and measuring the distance above the convex hull. Using the Materials Project API and Pymatgen library we were able to set a cutoff of <0.5eV in decomposition enthalpy to retain 116,216 materials for use in this study.