Discover the design thinking steps within this narrative by dragging the words to the suitable sentence:  

You find yourself in a bustling city and notice people struggling with crowded public transportation. You decide to address this issue and begin by observing commuters, engaging in conversations, and understanding their daily challenges. After absorbing these insights, you define the problem as the need for a more efficient and comfortable transportation solution. Inspired, you gather a diverse group of creative minds for a brainstorming session, generating a plethora of ideas. One idea stands out: a modular and flexible transport system. With enthusiasm, you create a scaled-down prototype of this system, incorporating the best features from various ideas. Now comes the real test as you put your prototype into action, observing how commuters interact with it and refining based on their feedback. Through this journey, you've unknowingly followed a series of steps that lead to a thoughtful and user-centered solution to a complex problem.