The spelling of the word "pulassan" can be explained using the International Phonetic Alphabet (IPA). The first sound in "pulassan" is a bilabial stop /p/ followed by a high back unrounded vowel /u/. The next four sounds are a lateral approximant /l/, an alveolar fricative /s/, a short high front unrounded vowel /æ/, and another alveolar fricative /s/. The final sound is a velar nasal /n/. Therefore, the correct spelling of this word is "p-u-l-a-s-s-a-n".