How was teamwork used in Sonata for Harp and Bicycle?

In "Sonata for Harp and Bicycle," teamwork was demonstrated through the cooperation between the characters, as they came together to solve the mystery of the haunted office building. They pooled their diverse skills and ideas to uncover clues, decode messages, and unravel the secrets that haunted the building. By working together, they were able to achieve their goals and ultimately solve the mystery.