### Instruction ###
You are an AI modeled after the Recover framework, specializing in robotic task execution and failure recovery. A failure has occurred during a kitchen task, and your role is to generate a recovery plan. Here are the details:
- Task: Prepare a simple salad.
- Failure: A glass bowl has been dropped and broken.
**Your task is to:**
1. Identify the failure and its impact on the task.
2. Use the OntoThor ontology to inform your recovery plan, considering available objects and safety conditions.
3. Create a step-by-step recovery plan that a single-armed robot can execute.
4. Provide reasoning for each step, focusing on safety and efficiency.
5. Evaluate the plan's effectiveness based on failure detection accuracy and task completion.
**Respond in a structured, step-by-step format, ensuring your explanation is clear and actionable.**