The spelling of the phrase "art hot trail" can be explained using IPA phonetic transcription. "Art" is spelled /ɑrt/ with the vowel sound "ɑ" as in "car" and the consonant sound "r". "Hot" is spelled /hɑt/ with the aspirated "h" sound before the vowel sound "ɑ" and the consonant sound "t". "Trail" is spelled /treɪl/ with the diphthong vowel sound "eɪ" as in "say" and the consonant sounds "t" and "l". Therefore, "art hot trail" is pronounced as /ɑrt hɑt treɪl/.