Step-by-step explanation:
When you introduce a clause that describes a noun you previously mentioned in a sentence then you are talking about Relative Pronouns. So relative pronouns connect sentences or phrases. So we have four sets of relative pronouns in Spanish:
que
quien
el que
el/la/los/las que
el/la/los/las cual.
Some uses are the following:
- que - we can use it to refer a person/place
- quien - we can use it only to refer a person