stanford-core-nlp | Ruby bindings to the Stanford Core NLP tools | Natural Language Processing library

On the StanfordCore NLP website there is the following demo:http://nlp.stanford.edu:8080/sentiment/rntnDemo.html

The demo gives a sentence a detailed sentiment score from 0 to 4.

I understand how to get a "positive" or "negative" assessment using command line, similar to this: Screenshot from corenlp.run showing a positive sentiment analysis

I have seen this question already, but I am interested how the analysis shown in the attached screenshot is created. Getting sentiment analysis result using stanford core nlp java code

Is there a way in Stanford CoreNLP to return a score (i.e. 0-4) for a given sentence so show its degree of positivity or negativity?

Thanks!

I adapted Prof. Mannings code sample from here to read in a file, tokenize, part-of-speech-tag, and lemmatize it.

Now I came across the issue of untokenizable characters, and I would like to use the "untokenizable" option and set it to "noneKeep".

Other questions on StackOverflow explain that I would need to instantiate the tokenizer myself. However, I am not sure how to do that so that the following tasks (POS tagging etc.) are still performed as needed. Can anyone point me in the right direction?