They are un<answer>aspirated</answer> for almost all speakers when immediately following word-initial s, as in spill, still, skill. After an s elsewhere in a word they are normally un<answer>aspirated</answer> as well, except sometimes in compound words. When the consonants in a cluster like st are analyzed as belonging to different morphemes (heteromorphemic) the stop is <answer>aspirated</answer>, but when they are analyzed as belonging to one morpheme the stop is un<answer>aspirated</answer>.[citation needed] For instance, distend has un<answer>aspirated</answer> [t] since it is not analyzed as two morphemes, but distaste has an <answer>aspirated</answer> middle [tʰ] because it is analyzed as dis- + taste and the word taste has an <answer>aspirated</answer> initial t.
If there is a cluster such as st and it belongs to different morphemes, the stop is what?
aspirated