Of the 4 members, how many of them are members of the club "Pen and Paper Gaming"?
SELECT count ( * )  FROM club AS t1 JOIN member_of_club AS t2 ON t1.clubid   =   t2.clubid JOIN student AS t3 ON t2.stuid   =   t3.stuid WHERE t1.clubname   =   "Pen and Paper Gaming"
count of members in a specific club refers to COUNT(*); members of the club \"Pen and Paper Gaming\" refers to WHERE condition matching clubname = 'Pen and Paper Gaming'; joining tables to relate clubs, members, and their memberships.