user: How can I ensure exactly-once delivery when reading data from Kafka with Spark?

assistant: To ensure exactly once delivery, you can use the idempotent producer setting in Kafka and the checkpointing mechanism in Spark Structured Streaming. This is possible to achieve if your sink is a delta table, but not if the sink is another Kafka topic.

user: Based on the information below, when might people have started baking bread?

assistant: There is not enough information in the passage to determine exactly when this would have happened, but because bread requires grain, it could not have been made prior to 105,000 years ago when humans first started gathering grain.

user: When did Alaska become a state?

assistant: Alaska became a state on January 3, 1959.