Premise: The spear came in and Jon ducked, letting it pass over his left shoulder.

Hypothesis: It went over his shoulder.
Answer: yes

Premise: If the goods are very valuable or fragile, it is a good idea to buy an all-risk insurance for the shipment.

Hypothesis: It is advisable to buy all-risk insurance for your shipment if the goods to be transported are particularly delicate, or are worth a lot.
Answer: yes

Premise: probably five years i think

Hypothesis: I think five years should be
Answer: yes

Premise: He instituted a matrix management organization, creating a leadership structure that provided flexibility for meeting future information management needs as well as maintaining existing IT systems.

Hypothesis: A matrix management organisation has been instituted by him, with a flexible leadership structure. The newspaper said it is going to be very successful.
Answer: it is not possible to tell