21. For them to hit a more precise spot there would have to be an underlying structure . 22. Although beaks vary significantly in size, shape, color and texture, they share a similar underlying structure . 23. This underlying structure has not yet been dated. 24. It states that, in the underlying structure , the quantifier cannot appear inside another, differently indexed Noun Phrase. 25. Catalan provides evidence for this underlying structure : 26. Most of the hardy perennials that shape the underlying structure of the garden are mundane, he said. 27. History teaches us that the underlying structure of the economy is in a continuing state of flux, 28. Safety tests were performed showing that the underlying structure built using fiberglass and copper chains was stable. 29. Many websites have large collections of pages generated dynamically from an underlying structured source like a database. 30. Spatial intelligence also entails a sense within spaces for the existence of underlying structures , symmetries, essential forms.
