Maddie’s reading the last word as ‘jelly’ shows that she is mostly using her knowledge of letters and sounds, her grapho-phonic knowledge – but for a couple of short horizontal strokes the word on the page looks like ‘jelly’. She is also using her syntactic (sentence grammar) knowledge, since ‘jelly’, a noun, is the right class of word to fit in that position. If she had been familiar with the word ‘jetty’ then she may well have said it, drawing on a combination of grapho-phonic, grammatical and semantic or ‘real world’ knowledge, supported by the picture in the book