Problem: Text: For nearly all models of induction cooktops, a cooking vessel must be made of, or contain, a ferrous metal such as cast iron or some stainless steels. The iron in the pot concentrates the current to produce heat in the metal. If the metal is too thin, or does not provide enough resistance to current flow, heating will not be effective. Most induction tops will not heat copper or aluminum vessels because the magnetic field cannot produce a concentrated current; ''all metal'' induction tops use much higher frequencies to overcome that effect. Any vessel can be used if placed on a suitable metal disk which functions as a conventional hotplate.

Question: can you use a cast iron skillet on an induction stove?

OPTIONS:
- no
- yes
A: yes

Problem: Text: In patchwork, foundation piecing was originally a method used to stabilize pieces of fabric that were stitched together. It first became popular in the 18th and 19th centuries in England, although a 15th-century Italian piece, the Impruneta cushion owned by Antonio degli Agli, may have used foundation piecing. A similar process popular in Britain is English paper piecing.

Question: is foundation piecing the same as paper piecing?

OPTIONS:
- no
- yes
A: no

Problem: Text: The 2018 FIFA World Cup qualification UEFA Group C was one of the nine UEFA groups for 2018 FIFA World Cup qualification. The group consisted of six teams: Germany, Czech Republic, Northern Ireland, Norway, Azerbaijan, and San Marino.

Question: did germany qualify for the 2018 world cup?

OPTIONS:
- no
- yes
A:
yes