'elty' [<set>] ['be2'|'be3'|'tr3'|'tr3u'|'tr6'|'qu4'|-> 'qu8'|'he8'|'he8f'||'he8i'|'he8r'|'he20'|'he20r']This keyword is used to assign a specific element type to a set of entities (see section Element Types in the appendix). The element name is composed of the following parts: The leading two letters define the shape (be: beam, tr: triangle, qu: quadrangle, he: hexahedra), then the number of nodes and at last an attribute describing the mathematical formulation or other features (u: unstructured mesh, r: reduced integration, i: incompatible modes, f: fluid element for ccx). If the element type is omitted, the assignment is deleted. If all parameters are omitted, the actual assignments are posted: