Question: Draw the pipeline data path ( as blocks ) to show the data dependency a ) without and b ) with forwarding for the following

Draw the pipeline data path (as blocks) to show the data dependency a) without and b) with forwarding for the following codes.
Lw R2,0(R1)
And R1, R2, R1
Or R3, R2, R4
Add R4, R2, R3

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