Problem: Does "In building facades, roofs or other applications in which zinc is used as sheet metal and for methods such as deep drawing, roll forming or bending, zinc alloys with titanium and copper are used." answer the question "Why isn't unalloyed zinc used in construction applications?" OPTIONS:
- yes
- no

A: no

Problem: Does "Contrary to the diffusionist theory, it appears that there was simultaneously a structural evolution towards the pointed arch, for the purpose of vaulting spaces of irregular plan, or to bring transverse vaults to the same height as diagonal vaults." answer the question "At which cathedral is the pointed arch used to match the heights of transverse and diagonal vaults?" OPTIONS:
- yes
- no

A: no

Problem: Does "Dell dropped out of school to focus full-time on his fledgling business, after getting $1,000 in expansion-capital from his family." answer the question "When did Michael Dell found his company?" OPTIONS:
- yes
- no

A:
no