$2.[$points $40]$ Given the training documents, classify the testing text as either a "Positive" or "Negative" sentiment by answering the questions below.

Training Text:

D$1$: "I love this movie" $($Positive$)$

D$2$: "This movie is great" $($Positive$)$

D$3$: "I hate this movie" $($Negative$)$

D$4$: "This movie is terrible" $($Negative$)$

Testing Text:

D$5$: "I love this great movie"

D$6$: "I hate this terrible movie"

a$.[$points $2]$ Tokenize the documents by splitting them into words. Perform case lowering and remove punctuation $($if any$).$ Create the vocabulary for the training document.

b$.[$points $3]$ Compute the prior class probability P$($C$),$ where C is the class label.