We are Marty's classmates.
I am Rodrigo's colleague.
Mr. Smith is Kate's boss.
I am Mr. Alvarez student.
Mary is Aldo's wife.
This is Sara and Todd's neighbor.
This is Karina's laptop.
She is his wife.
This is their neighbor.
Matry is our classmate.
I am his student.
This is her laptop.
Rodrigo is my colleague.
Mr. Smith is her boss.