Premise: Until one looked directly into his sun-browned face he could pass as a man still in his late twenties.

Hypothesis: He was a young girl, through and through.
Answer: no

Premise: More efficient designs can also reduce the amount of steel needed for the absorber and ductwork.

Hypothesis: The amount of steel required for ductwork can be lowered with a more efficient design.
Answer: yes

Premise: now like who's got that extra two and a quarter i know i don't so

Hypothesis: Everyone that I have seen has that two and a quarter.
Answer: no

Premise: Southeast of town is Shiroyama Park, whose unlandscaped slopes covered with wildflowers have a pleasantly natural look and offer an extensive panorama of the town and the Japan Alps beyond.

Hypothesis: Shiroyama Park has natural-looking slopes which provide a panorama of the Japan Alps.
Answer: yes