Neuter relative pronouns (lo que, lo cual)

Lo cual and lo que are neuter relative pronouns that refer to an abstract concept or situation which is not gender specific (masculine or feminine). Both lo cual and lo que are quite similar, but each can be used only in certain situations. Read and listen to the following examples, then repeat each out out loud.

English
Spanish
The woman screamed in a loud voice, which upset her child very much.
La mujer gritó en voz alta, lo cual molestó mucho a su niño.
What the old man said doesn’t make sense.
Lo que dijo el anciano no tiene sentido.

Lo Cual (which, what)

Lo cual is only used when referring to something non-gender specific that has already been introduced in a sentence. Review and listen to the following examples, then repeat each one out loud.

She always arrives late, which really annoys me.
Ella siempre llega tarde, lo cual me molesta mucho.
There is a new magazine by Sports Illustrated, which I really like.
Hay una revista nueva por Deportes Ilustrados, lo cual me encanta mucho.

Lo Que (which, what)

Lo que can be used just like lo cual. However, unlike lo cual, which can only be used when referring to something that has already been introduced in a sentence, lo que can be used to refer to something that has not already been introduced in a sentence. Review and listen to the following examples, then repeat each one out loud.

I can't tell him what you told me about Rosa.
No puedo contarle lo que me dijiste acerca de Rosa.
What the president of the home owners assocation told us is very important.
Lo que nos dijo el presidente de la asociación de propietarios es muy importante.