is known
Lo que sí se sabe son las consecuencias.
What is known are the consequences.
Nothing is known for sure.
Tom se sabe el nombre del perro de Mary.
Tom knows Mary's dog's name.
Se sabe toda la historia de Roma de memoria.
He knows the entire history of Rome by heart.
— 8½ (1963)
No te hagas el sorprendido, hace tiempo que se sabe.
Don't act surprised, it's been known for a while.
— Control (2007)