Sofia, being Eduardo's wife, is Elena's aunt by marriage because Elena is the daughter of Eduardo's sister, Lucia. Hence, Sofia is not Elena's mother, but rather the wife of Elena's maternal uncle. Miguel, being the son of Sofia and Eduardo, is a first cousin to Isabela. This is because his father Eduardo and Isabela's mother Lucia are siblings, making their children cousins to each other.
Eduardo and Lucia are siblings. Eduardo is married to Sofia, and they have a son named Miguel. Lucia is married to Carlos, and they have two daughters, Elena and Isabela. What is Sofia's relationship to Elena, and how is Miguel related to Isabela?
Make your response very short.