##### Question Holidays: Design an end-to-end data pipeline that enables Alexa to answer holiday-related questions worldwide. Describe data sources, ingestion, normalization, storage, and query layers. How will you reconcile multiple calendar systems (Gregorian, Lunar, Federal) and keep content current? Animals: Extend the pipeline so Alexa can answer animal-related questions. What additional data elements, taxonomies, or ML models are required? How will you detect and correct mis-routed queries such as “Peppa Pig” (actually a cartoon character) that are falsely labeled as animal questions? Debugging: You receive error logs showing Alexa fails for specific animal queries. Propose a framework to categorize these errors, trace root causes, and prioritize fixes. ​ ##### Hints Calendars differ by locale—normalize date formats, offsets, and observance rules. Implement confidence thresholds and intent-reclassification to handle ambiguous queries like Peppa Pig.