A start with question 1 and answer them all in order
Who just finished the marathon is tired is the subordinate clause, because it started with a relative pronoun, it is classified as a relative clause. "Just" is the subordinate conjunction and it is an adverb because it modifies the "finished" in the sentence to show immediacy.
from this first paragraph of the iroquois constitution, i think the paragraph : Describe the traditions of the lords, which is firekeeper. In other word, they're the one who responsible to maintain peace.
