Lecture with formulas on the blackboard in front of studentsLecture with formulas on the blackboard in front of students
Tumbleweed appears on the road in front of amateur driversTumbleweed appears on the road in front of amateur drivers
A lot of white men are sitting at a desk in front of the blackboardA lot of white men are sitting at a desk in front of the blackboard
A girl with a cat on a leash on the platform in front of the trainA girl with a cat on a leash on the platform in front of the train