I'm trying to combine a series of conditions while ignoring duplicates to get a result. In the below data, I need to find Nicholson, Jack in column B and count all the "yes" values in columns C & D, but ignore count for duplicates in column A.

---- DATA ----
A B C D
Week 1 Nicholson, Jack yes no
Week 3 Nicholson, Jack yes yes
Week 4 Nicholson, Jack yes yes
Week 5 Nicholson, Jack yes yes
Week 6 Nicholson, Jack yes yes
Week 7 Nicholson, Jack yes yes
Week 8 Nicholson, Jack yes yes
Week 8 Nicholson, Jack yes yes
Week 8 Washington, Denzel yes yes

Seeking Result: 13

Thank you so much in advance!