Sentence 1: Compare prices before you buy any significant item.

Sentence 2: You should compare prices before making a large purchase.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: But there's a box just round the corner."

Sentence 2: There's a small box around the corner.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: yeah oh yeah it's really it adds up so fast yeah

Sentence 2: It accumulates quickly.
Is this second sentence entailed by the first?

Answer:
yes