Base-catalyzed Michael reactions

What product would you obtain from a base-catalyzed Michael reaction of 2,4-pentanedione with each of the following a,/3-unsaturated acceptors ... 

In this example, the /3-diketone 2-methyJ-l,3-cyclopentanedione is used to generate the enolate ion required for Michael reaction and an aryl-substituted a,/3-unsaturated ketone is used as the acceptor. Base-catalyzed Michael reaction between the two partners yields an intermediate triketone, which then cyclizes in an intramolecular aldol condensation to give a Robinson annulation product. Several further transformations are required to complete the synthesis of estrone. 

PRACTICE PROBLEM 19.19 What product would you expect to obtain from the base-catalyzed Michael reaction... 

What product would you expect to obtain from the base-catalyzed Michael reaction of (a) l,3-diphenylprop-2-en-l-one (Section 19.5A) and acetophenone and (b) 1,3-diphenylprop-2-en-l-one and cyclopentadiene Show all steps in each mechanism. 

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