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A chemistry teacher conducting an experiment in a classroom
Keywords:
men
education
looking
medicine
studying
adult
laboratory
working
wisdom
indoors
caucasian ethnicity
teacher
blackboard
desk
intelligence
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holding
flask
serious
scientific experiment
beaker
equipment
science
chemical
looking at camera
student
formula
microscope
classroom
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lab coat
expertise
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professor
occupation
chemistry
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chemist
one person
laboratory desk
teachers desk
upper class
looking at beaker
senior high school
chemical formulas
teacher lab
formulas desk
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