[...] each representation acts a buffer and creates what Reich [Reich, P. A., 1977, Evidence for a stratal boundary from slips of the tongue, “Forum Linguisticum” 2, pp. 211-217] has called a "loosely yoked" production system. The processing at each level is yoked to the one above it, but the higher one can get ahead.
- Dell (2004), a pag.131