Answer: ok well maybe its :
1. Elena es abuela de Armando.
2. Luis es hermano de Mariela.
3. Cecilia es hermana de Andrés.
4. Mariela y Luis son hermanos de Andrés y Cecilia.
The translation of fancy depends on the context.
If you mean fancy as in high quality, then the translation would be lujoso.
If you mean fancy as in elaborate, then the translation would be extravagante.
I hope that this helped!
gracias que tengas un buen día(thank you have a nice day) is in my opinion the most common phrase and easiest to learn to a non-speaking spanish person.