Input: Article: Infrared reflectography (fr; it; es), as called by art conservators, can be applied to paintings to reveal underlying layers in a completely non-destructive manner, in particular the underdrawing or outline drawn by the artist as a guide. This often reveals the artist's use of carbon black, which shows up well in reflectograms, as long as it has not also been used in the ground underlying the whole painting. Art conservators are looking to see whether the visible layers of paint differ from the underdrawing or layers in between such alterations are called pentimenti when made by the original artist. This is very useful information in deciding whether a painting is the prime version by the original artist or a copy, and whether it has been altered by over-enthusiastic restoration work. In general, the more pentimenti the more likely a painting is to be the prime version. It also gives useful insights into working practices.

Now answer this question: What is the term for differences in the painting and underdrawing made by the original artist?

Output: pentimenti

Input: Article: Apple announced a battery replacement program on November 14, 2003, a week before a high publicity stunt and website by the Neistat Brothers. The initial cost was US$99, and it was lowered to US$59 in 2005. One week later, Apple offered an extended iPod warranty for US$59. For the iPod Nano, soldering tools are needed because the battery is soldered onto the main board. Fifth generation iPods have their battery attached to the backplate with adhesive.

Now answer this question: What generation saw iPod batterys being affixed with glue?

Output: Fifth generation

Input: Article: Beyonce and her mother introduced House of Dereon, a contemporary women's fashion line, in 2005. The concept is inspired by three generations of women in their family, the name paying tribute to Beyonce's grandmother, Agnez Dereon, a respected seamstress. According to Tina, the overall style of the line best reflects her and Beyonce's taste and style. Beyonce and her mother founded their family's company Beyond Productions, which provides the licensing and brand management for House of Dereon, and its junior collection, Dereon. House of Dereon pieces were exhibited in Destiny's Child's shows and tours, during their Destiny Fulfilled era. The collection features sportswear, denim offerings with fur, outerwear and accessories that include handbags and footwear, and are available at department and specialty stores across the US and Canada.

Now answer this question: Who shares in the House of Dereon fashion line introduction with Beyonce?

Output:
her mother