Premise: We have been more fortunate than many agencies, in that our attrition rate is extremely low.

Hypothesis: Our attrition rate is lower than most agencies.
Answer: yes

Premise: The other categories of aliens and the presence requirement were retained.

Hypothesis: Retained were some of the categories of aliens.
Answer: yes

Premise: But he needs help.

Hypothesis: But he can't achieve his goal alone, so he needs assistance.
Answer: it is not possible to tell

Premise: Things were much too ineffable, it seems, for Italian tastes.

Hypothesis: The Italians have very specific tastes.
Answer: it is not possible to tell