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i need it draw plz a- Draw the query graph. b- Draw the query tree corresponding to the relational algebra expression. c- Draw the initial

i need it draw plz
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a- Draw the query graph. b- Draw the query tree corresponding to the relational algebra expression. c- Draw the initial query tree, then show how the same query tree is optimized by heuristic rules optimization in another figure. Q1:SELECTFROMFname,Lname,AddressEMPLOYEE,DEPARTMENT WHERE Dname='Research' AND Dnumber=Dno

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