Please noticed this sentence Please book a slot at Kickers tonight." 1. Which of the two preprocessing techniques do you decide to use and not to use before you doing POS tagging?The results of four different pretreatment techniques are illustrated to prove the answer. 2. The distribution of parts of speech of each word in the general corpus. Table 1: Noun Verb Det Prep Adverb please 0 0 0 1 book 0.6 0.4 0 0 slot 0.8 0.2 at 0 0 1 kickers 1 0 tonight 0.05 0.05 o 0 0.9 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 Find the ambiguous words in the sentence, calculate the entropy of each ambiguous word, and explain how to interpret the entropy of each word based on the POS tagging