Apache Pig - Bag & Tuple Functions

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Given below is the list of Bag and Tuple functions.

S.N.	Function & Description
1	TOBAG() To convert two or more expressions into a bag.
2	TOP() To get the top N tuples of a relation.
3	TOTUPLE() To convert one or more expressions into a tuple.
4	TOMAP() To convert the key-value pairs into a Map.