Background: The Blackfoot Confederacy, Niitsitapi or Siksikaitsitapi (nitmowmeko, meaning "the people" or "Blackfoot-speaking real people") is a historic collective name for the four bands that make up the Blackfoot or Blackfeet people: three First Nation band governments in the provinces of Saskatchewan, Alberta, and British Columbia, and one federally recognized Native American tribe in Montana, United States. The Siksika ("Blackfoot"), the Kainai or Kainah ("Blood"), and the Northern Piegan or Peigan or Piikani ("Apa'tosee" or "Poor Robes") reside in Canada; the Southern Piegan/Piegan Blackfeet ("Amskapi Piikani" or Pikuni) are located in the United States, where they are also known as the Blackfeet Nation. In modern use, the term is sometimes used only for the three First Nations in Canada. Historically, the member peoples of the Confederacy were nomadic bison hunters and trout fishermen, who ranged across large areas of the northern Great Plains of western North America, specifically the semi-arid shortgrass prairie ecological region.
Context: The Niitsitapi main source of food on the plains was the American bison (buffalo), the largest mammal in North America, standing about 6 1/2 feet (2.0 m) tall and weighing up to 2,000 pounds (910 kg). Before the introduction of horses, the Niitsitapi needed other ways to get in range. The buffalo jump was one of the most common ways. The hunters would round up the buffalo into V-shaped pens, and drive them over a cliff (they hunted pronghorn antelopes in the same way). Afterwords the hunters would go to the bottom and take as much meat as they could carry back to camp. They also used camouflage for hunting. The hunters would take buffalo skins from previous hunting trips and drape them over their bodies to blend in and mask their scent. By subtle moves, the hunters could get close to the herd. When close enough, the hunters would attack with arrows or spears to kill wounded animals. The people used virtually all parts of the body and skin. The women prepared the meat for food: by boiling, roasting or drying for jerky. This processed it to last a long time without spoiling, and they depended on bison meat to get through the winters. The winters were long, harsh, and cold due to the lack of trees in the Plains, so people stockpiled meat in summer. As a ritual, hunters often ate the bison heart minutes after the kill. The women tanned and prepared the skins to cover the tepees. These were made of log poles, with the skins draped over it. The tepee remained warm in the winter and cool in the summer, and was a great shield against the wind. The women also made clothing from the skins, such as robes and moccasins, and made soap from the fat. Both men and women made utensils, sewing needles and tools from the bones, using tendon for fastening and binding. The stomach and bladder were cleaned and prepared for use for storing liquids. Dried bison dung was fuel for the fires. The Niitsitapi considered the animal sacred and integral to their lives.
Question: did they use the bison for anything else other than food?
Answer: The women tanned and prepared the skins to cover the tepees. These were made of log poles, with the skins draped over it.

Background: A Hakka, Kate Tsui was born and raised in Hong Kong. Her father works in logistics, and while her mother is now a homemaker, she was a dancer when she was younger. Tsui also has an older sister, who is married with two kids. As of 2014, Tsui has expressed that with the exception of herself, her entire immediate family now resides in Taiwan.
Context: Aside from her development in television acting, Tsui also experienced success in developing her career in the film industry. In 2007, through a series of auditions, Tsui was cast as the female lead, alongside A-list actors Tony Leung Ka-fai and Simon Yam, in Eye in the Sky, which is a film produced by Johnnie To and directed by Yau Nai-hoi. With her performance in the film, Eye in the Sky was praised by professional Hong Kong film critic, Sek Kei, as the best Hong Kong film in the first half of 2007. The film was subsequently entered into the Berlin International Film Festival, as well as the Shanghai International Film Festival. Through her performance in the film, Tsui was widely acclaimed to be talented in acting and a rising actress worth looking out for. With her performance in Eye in the Sky, Tsui earned the Best Newcomer - Gold Award from Hong Kong Film Directors' Guild 2007, as well as Hong Kong Film Award for Best New Performer from the 27th Hong Kong Film Awards, held in 2008. The latter is a particularly outstanding achievement, for Tsui is, so far, the only individual to have received a Hong Kong Film Award, while being fully contracted by TVB, since Anita Yuen, who coincidentally is also a Miss Hong Kong pageant winner, won the same award back in 1993. Professional Taiwanese film critic, Mai Ruoyu, had openly criticized the Golden Horse Film Festival and Awards, a film festival and awards ceremony held in Taiwan, for excluding Tsui and her performance in Eye in the Sky from a nomination in the Best New Performer category. He had further praised that Tsui has the most potential and talent in acting among all of TVB's Miss Hong Kong-turned-actresses, since Maggie Cheung.
Question: What was Mai's criticism?
Answer:
for excluding Tsui and her performance in Eye in the Sky from a nomination in the Best New Performer category.