We sourced crystal structures from The Materials Project Database (MP) , a publicly accessible database that provides detailed information on thousands of materials. MP provides APIs for programmatic access to the computed data on crystal structures and other properties, easing the implementation of workflows and automation. We queried only stable structures (using the argument is_stable=True). We retrieved 33,990 unique crystal structures, see Table for a compound count breakdown by number of elements. To simplify the generation task, we applied a filtration step to ensure that each structure had both conventional and symmetrized representations. Structures with more than 10 sites in the conventional representation or more than 5 sites in symmetrized representation were excluded. Since we rely on structure construction using symmetrized versions of structures, we limit the num- ber of sites for simplicity. We expect using structures with more unique sites would reduce performance. We also checked that parameter rounding for the code (described below) results in a structure matching the conventional structure. This filtration step yielded 5,581 unique compounds among which 83 were unary, 1,912 binary, 3,366 ternary, 217 quaternary, and 3 quinary. The dataset that we prepared and used for Text2Struc training and testing is visualized in Figures and. Figure displays the elemental distribution in 5,581 unique compounds. The Text2Struc dataset includes components built from most elements in the periodic table, making it versatile for many applications. Silicon is the most frequent element in the compounds used in our dataset, and other top elements in the dataset include Ge, O, Ni, Pd, Cu, In, Ga, and Al. Figure depicts the variety of compound symmetries included in the dataset. All seven crystal systems are present, with the tetragonal and hexagonal systems being the most common. The dataset includes 92 distinct space groups, with the most frequent being I4/mmm, P63/mmc, Pm-3m, P-62m, P4/nmm, P4/mmm, P-3m1, P6/mmm, Fm-3m, P4/mbm, and Cmmm.