What is the grammatical analysis (i'rab) of verse 56 of Surat An-Naml?

The verse in question is: {But the answer of his people was only that they said, "Evict the family of Lot from your city! Indeed, they are people who purify themselves"} [An-Naml:56]. Its grammatical analysis is as follows: The faa' (ف) is for resumption. "Maa" (ما) is a negative particle. "Kaana" (كان) is a copulative verb (verb of incomplete predication). "Jawaabu" (جواب) is the predicate of kaana, advanced. "Qawmihi" (قومه) is a genitive construct (mudaf ilayhi). "Illa" (إلا) is a particle of restriction. "An qaalu" (أن قالوا) is the delayed subject of kaana (its تقدير (estimated form) is: qawluhum (their saying)). "Qaalu" (قالوا) is a verb and its subject. "Akhriju" (أخرجوا) is an imperative verb and its subject. "Aala" (آل) is the object. "Lutin" (لوط) is a genitive construct (mudaf ilayhi). "Min qaryatikum" (من قريتكم) is a prepositional phrase (jaar wa majrur) and a genitive construct (mudaf ilayhi). "Inna" (إن) is an emphatic particle (harf nasikh). The pronoun (hum, in innahum) is its subject (ismuha). "Unaasun" (أناس) is its predicate (khabaruha). "Yatat-harun" (يتطهرون) is a present tense verb and its subject. The sentence (yatat-harun) is an adjective (na't) for "unaasun".