Instruct: Retrieve semantically similar text.
Query: A student sitting in a simple classroom appears deep in thought.
A student thinking in a classroom.
A person is studying.
Someone here is quite focused.
A person is studying in a quiet room.
He is studying.
The student is laying back in his chair and listening to the lecture.
He is learning something.
A mysterious person in class.
they are in a class
A student learning about mathematics.
Students are focusing.
The students are learning.
A student is writing something.
A library during study hour is silent
The young person is studying indoors.
The young man is deep in thought.
A student is not focused on herself.
Student take a break after an exam
The person is inside the classroom.
There's a teacher with learning material.
The person is thinking.
A blond teenager sitting on the steps of the school  deep in thought.
An empty classroom
A student eating during lunchtime.
A student learning about mathematics.