1.- karla is a chef
she is not a writer
2.- marcos is a writer
he is not a photographer
3.-Maria is a manager
she is not a nurse
4.- Linda is a scientist
she is not a doctor
5.- jose is a doctor
he is not a manager
6.- juana is an engineer
she is not an pilot
7.- juan is a photographer
he is not a student
10.- marcos is a pilot
he is not a cowboy