TASK DEFINITION: You are given a sentence in Spanish. Your job is to translate the Spanish sentence into English.
PROBLEM: Datan de hace unos dos millones y medio de anos atras.

SOLUTION: They go back about two-and-a-half-million years.

PROBLEM: Cuan interesante sois?

SOLUTION: How interesting are you?

PROBLEM: Alli esta la entrada al nido, hay un lapiz de referencia.

SOLUTION:
There's the nest entrance, there's a pencil for scale.