Assertion: boron | /r/HasProperty | supericosahedron
Facets:
Source sentences:
text: (a) Thirteen-icosahedron unit (B 12 ) 13 B 12 (supericosahedron), and (b) B 80 cluster unit.
text: These icosahedra arrange in a thirteen-icosahedron unit (B 12 ) 12 B 12 which is shown in figure 4a and is called supericosahedron.