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A grade record refers to a student (SSN), a particular section, and a grade (GRADE). Design a relational database schema for this database application. First show all the functional dependencies that should hold among the attributes. Then design a relational schema for the database in 3NF. Specify the key attributes of each relation. Note any unspecified requirements, and make appropriate assumptions to render the specification complete.

1. Develop a Python program to parse this data: (do not use the CSV class) “col 1”, “col 2”, “col 3″1, ‘abc’, 23, “de,fg”, 45, , 6 Output to stdout should be:[‘col 1’, ‘col 2’, ‘col 3’ ][ 1, ‘abc’, 2 ][ 3, ‘de,fg’, 4 ][ 5, None, 6 ]