Question

1. mis tíos son los hijos de mis primos.

lógico
ilógico

1. la hija de mi abuela es mi nieta.

lógico
ilógico

1. la hermana de mi padre es mi cuñada.

lógico
ilógico

1. el padre de mi padre es mi abuelo.

lógico
ilógico

1. mis primos son los hijos de mis abuelos.

lógico
ilógico

Explanation:

1. For #10: My uncles/aunts are the children of my cousins is illogical—cousins' children are my first cousins once removed, not my uncles/aunts.
2. For #11: My grandmother's daughter is my niece is illogical—my grandmother's daughter is my mother or aunt, not my niece.
3. For #12: My father's sister is my sister-in-law is illogical—my father's sister is my aunt, not a sister-in-law.
4. For #13: My father's father is my grandfather is logical, as this fits standard family relationships.
5. For #14: My cousins are my grandparents' children is illogical—my grandparents' children are my parents, aunts, or uncles; cousins are the children of my aunts/uncles.

Answer:

1. Ilógico
2. Ilógico
3. Ilógico
4. Lógico
5. Ilógico