CREATE TABLE table_52313 ("Player" TEXT, "Position" TEXT, "Date of Birth  ( Age ) " TEXT, "Caps" FLOAT, "Club/province" TEXT)

When was Tomokazu Soma born who plays for the wild knights?
SELECT "Date of Birth (Age)" FROM table_52313 WHERE "Club/province" = 'wild knights' AND "Player" = 'tomokazu soma'
SELECT "Date of Birth (Age)" FROM "table_52313" WHERE "Club/province" = 'wild knights' AND "Player" = 'tomokazu soma'