Among the biwords pairs with "àbac" as its first word, how many of them have an occurrence of over 10?
àbac refers to word = 'àbac'; as first word refers to w1st; occurrence of over 10 refers to occurrences > 10
SELECT COUNT(T2.w2nd) FROM words AS T1 INNER JOIN biwords AS T2 ON T1.wid = T2.w1st WHERE T1.word = 'àbac' AND T2.occurrences > 10