Jacob, being Emily's husband, is an uncle to Emily's sister Olivia's children. Therefore, Liam, being Olivia's son, is Jacob's nephew. Sophia is the daughter of Olivia and a sister to Liam. Since Noah is Emily and Jacob's son, and Olivia is Emily's sister, Sophia is Noah's cousin.
Emily and Olivia are sisters. Emily is married to Jacob, and they have a son named Noah. Olivia is married to Ethan, and they have a daughter named Sophia and a son named Liam. How is Jacob related to Liam, and what is Sophia's relationship to Noah?

Make your response very short.