model,17-2-H89-1036,ak | These structures specify <term> extended domains of locality </term> ( as compared to a <term> context-free grammar </term> ) over which <term> constraints </term> can be stated . | #19559 These structures specify extended domains of locality (as compared to a context-free grammar) over which constraints can be stated. | |
model,1-3-H89-1036,ak | These <term> constraints </term> either hold within the <term> elementary structure </term> itself or specify what other structures can be composed with a given <term> elementary structure </term> . | #19565 These constraints either hold within the elementary structure itself or specify what other structures can be composed with a given elementary structure. |