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. Hector - who - NAME_3, Hector - what - UNK, Hector - when - UNK, Hector - where - NAME_2, Hector - why - negotiate peace treaty,  Hector - 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_4 is the brother of NAME_1." The word "unk" should not appear in your response.
user