Sentence:  In still another variation, the nonsense <WSD>word</WSD> is presented and the teacher asks, "What sound was in the beginning of the word?" "In the middle?" and so on. The child should always respond with the phoneme; he should not use letter labels. 
Meaning of the word marked with <WSD> tags:  A (sequence of letters, characters, or sounds, considered as a discrete entity), though it does not necessarily belong to a language or have a meaning