graph TD A[Start] --> B[Input: short-promotional-script] B --> C[Task 1: Parse Script Keywords] C --> |Using #223| D[refined-keywords] D --> E[Task 2: Get Vertical Videos] E --> |Using #205| F[vertical-video-urls] F --> G{Need manual selection?} G --> |Yes| H[Task 3: Select Best URL] G --> |No| J[Use First URL] H --> |Using #223| I[selected-video-url] J --> K[selected-video-url] I --> L[Task 4: Trim Video] K --> L L --> |Using #194| M[trimmed-vertical-broll] M --> N[End] style A fill:#f9f,stroke:#333,stroke-width:2px style N fill:#f9f,stroke:#333,stroke-width:2px style G fill:#ffb,stroke:#333,stroke-width:2px