Find the answers for the question words - 'who, what, when, where, why, how' - for each of the subject in a sentence

Sample input: "NAME_1 of NAME_2  negotiates a peace treaty with Menelaus."

Sample output: 
1. NAME_3 - who - NAME_4, NAME_3 - what - UNK, NAME_3 - when - UNK, NAME_3 - where - NAME_2, NAME_3 - why - negotiate peace treaty,  NAME_3 - how - UNK.
2. Menelaus - who - King, Menelaus - what - UNK, Menelaus - when - UNK, Menelaus - where - Sparta, Menelaus - why - negotiate peace treaty, Menelaus - how - UNK.

Now, find the output for the sentence - "NAME_5 is the brother of NAME_1."