The word Cules is misspelled against Caules, which is plural of "Caulis"
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Word contains consecutive vowels 'AU' in between alphabets c & les is misspelled as 'U' as letter 'A' is phonetically ignored
Wrong Spelling:  c-u-les 
Correct Spelling:  c-au-les 
Check more misspelled words of Caules to spell it correct.