Subject and object dependencies

Is there a way by which we can get Subject object dependencies in Languagetool? Because till now that I have checked we only get lemma and POS tags for the tokens of a text/sentence.

If there is, please can anyone of you guide me in that direction?

No, there are only POS tags. But of course, any Java rule could run its own logic or parser to get the information it needs (if that process isn’t too slow).