Complete the family tree which appears in the image on the left from the following indications:
- Óscar is the brother of José's father.
- Ana was born after her sister.
- Isabel is the daughter of Carlos's brother.
- Joaquin and Carlos only have boys.
- Marta is the mother-in-law of Sonia and another woman.
- Maria has two daughters.
- Sergio has a little brother.
Below is the completed family tree based on the indications: