Answer:
I do not know the context of this question, if you provide it in the comments I can check and tell you :)
for yes
Oui, Marie veut aller chez le médecin. Vrai
Non, Marie ne veut pas aller chez le médecin. Faux
Vrai means true.
Fau means false.
the first answer would translate to yes, marie wants to go to the doctor.
the second answer would translate to no, marie does not want to go to the doctor.
hope I helped :)