TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Carnival Air Lines was a charter and scheduled airline division of Carnival Cruise Lines started in 1988 after Carnival Cruise Lines purchased Pacific Interstate Airlines.
Question : What company is Carnival Air Lines part of?

SOLUTION: Carnival Cruise Lines

PROBLEM: Context : Avraham Arnon (Hebrew: ; born 1887, died 24 May 1960) was an Israeli educator and a recipient of the Israel Prize.
Question : Which award was honoured to Avraham Arnon?

SOLUTION: Israel Prize

PROBLEM: Context : The JB-4 entered the flight testing stage in January 1945.
Question : What was the year JB-4 entered service?

SOLUTION:
1945