Mme Sicard (first name unknown, "fl". 1678) was the daughter and pupil of Jean Sicard. Jean dedicated his 12th book to her, and she wrote airs for a number of his publications, including one in the 12th book, three in the 13th, and one each in the 14th and 16th. She is credited as the first published woman composer in France, followed closely by the renowned Elisabeth Jacquet de La Guerre.
Can we infer the following?
Jean dedicated his 12th book that had 400 pages to her. 

Options are:
 - Yes;
 - It's impossible to say;
 - No;
The answer is:
It's impossible to say