A set of five colorful recycling bins is arranged in a row. From left to right, there is a yellow bin, a blue bin, a red bin, a green bin, and a black bin. Each bin has a label on the front with a different cartoon character and a brief description of the materials it accepts. The labels are in the following order: a smiling face with a green checkmark, a smiling face with a blue checkmark, a smiling face with a red checkmark, a smiling face with a yellow checkmark, and a smiling face with a black checkmark.