71.   The framework of new general SVQs is designed to allow progression from lower to higher levels.

72.   Alternative pathways at one level of description can be filtered hierarchically through attempts to build pathways at the next higher level.

73.   Or should the higher levels simply filter out invalid strings?

74.   The amount of information on each edge is determined by how much information a higher level needs in order to decide between competitors.

75.   It is important to know just how difficult a task the higher levels are facing.

76.   Its function is to filter the words the higher levels need consider, yet its favourite words may be completely inappropriate from a syntactic and semantic point of view.

77.   Thus, the final decision on segmentation and labelling is made as a result of recognition at a higher level.

78.   A final decision about segmentation would not be made until at least some words had been integrated into a higher level.

79.   Secondly, the phrases extended over the entire utterance thus causing a potential combinatorial explosion of partial interpretations at higher levels of processing.

80.   Teachers must provide opportunities for pupils to progress to higher levels.