The spelling of the word "Janessia" is interesting as it contains some unique phonetic sounds. To break down the pronunciation, we can use the International Phonetic Alphabet (IPA). The "J" is pronounced like a "y" sound, represented by /j/. The "a" sounds in "Janessia" are pronounced like the "a" in "cat," represented by /æ/. The "e" is pronounced like the "i" in "bit," represented by /ɪ/. The final "ia" is pronounced as "ya," represented by /jə/. Therefore, the IPA transcription for "Janessia" is /jænɪsjə/.