The chemical formula Al0.01Ga0.99P1 consists of: 0.99 atoms of Ga; 1.0 atoms of P; 0.01 of Al replaced part of Ga in the structure For all structure tasks, an input instance such as the structure shown in Fig. is described with: Figure : An example (mp-556194 from the Materials Project) described using natural language. In the figure, the large green spheres represent Sr atoms, the small green spheres represent Se atoms, the grey spheres represent F atoms, and the brown spheres represent Sb atoms.