The problem Sentiment Analyser solves

It can be used to analyse any bullying to illegal activities on the social media by checking if there are any repetative negative scores or high negative scores on the social media poasts like reddit, facebook or twitter.
bots can be used to implement it and any suspicious activity below a certain total score can be reported to the authorities.

Challenges we ran into

adding the support of different languages was a challenge, but we have added the support of Hindi language along with default english language. more languages can be added and the pre-existing languages can be overridden to add or remove the words.