Premise:
"Although Zen had been present in Japan since the 12th century, its ascendancy began under the Kamakura regime, which found the mystic Chinese philosophy admirably suited to Japanese sensitivity, impressionism, and love of form and ritual."
Hypothesis: Although Zen was present in Japan since the 12th century, it was ascended during the Kamakura regime which was very interesting in the Chinese philosophy that seemingly emphasized Japanese values.

yes

Premise:
"Fifty-one conferees included 22 clients, 18 legal services staff, and 11 others including judges and IOLTA staff and 16 organizational representatives from LSC, NLADA, and CLASP."
Hypothesis: Thirty of the fifty-one conferees were male.

it is not possible to tell

Premise:
"The most impressive historical monument on the eastern shore of the lake is Chuzenji, a subtemple of Toshogu's Rinnoji."
Hypothesis: There are no monuments on the western shore of the lake.
it is not possible to tell