Question $4.$ Vector semantics $[1\mathrm{.}5+1\mathrm{.}5=3$ Marks$]$

Answer the following: with respect to Training Corpus D:

Training Corpus D

document $-$ d$1$: Today is sunny day! I like sunny days document $-$ d$2$: I do not like sunny days. I like chocolate document $-$ d$3$: I like both sunny and rainy day

Use the TF$-$IDF to decide on :

The word $$sunny$$ is discriminative in identifying documents in corpus D$.$ The word $$chocolate$$ is discriminative in identifying documents in corpus D$.$ Justify your answer.