Question:
The shogunate, always suspicious of people on the move, maintained a system of garrisons along the road, and no one went through without an official pass.

Does it follow that "The shogunate thought a garrison would keep terrorists out."?
Answer:
it is not possible to tell

Question:
The package must be purchased after your arrival in Puerto Rico.

Does it follow that "You are not required to purchase anything after arriving in Puerto Rico. "?
Answer:
no

Question:
Not great, but a couple of points better than now.

Does it follow that "Things used to be better than they are right now."?
Answer:
yes

Question:
yeah yeah the three fifty regular gas engine

Does it follow that "The 350 gas engine, the average one, yeah that one."?
Answer:
yes