You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Treaty

Context:
The Brazilian federal constitution does not have a supremacy clause with the same effects as the one on the U.S. constitution, a fact that is of interest to the discussion on the relation between treaties and state legislation.

Question:
A supremacy clause in a federal constitution is relevant to the discussion on the relation between treaties and what other type of legislation?

state legislation