Problem: Does "They are less commonly used for reception where multiple channels are present, in which case additional modifications are used to increase the bandwidth, or entirely different antenna designs are used." answer the question "For use with more than one channel changes are made to increase what property?"

A: yes

Problem: Does "Underwood has since sold 65 million records worldwide, and become the most successful Idol contestant in the U.S., selling over 14 million albums copies in the U.S. and has more Underwood has won seven Grammy Awards, the most Grammys by an "American Idol" alumnus." answer the question "Who was the winner of this season?"

A: no

Problem: Does "By mid-2014, Accelerator, a biotech investment firm, had raised more than US$30 million from investors, including Eli Lilly and Company, Pfizer, and Johnson & Johnson, for initial funding to create biotechnology startups at the Alexandria Center for Life Science, which encompasses more than 700,000 square feet (65,000 m2) on East 29th Street and promotes collaboration among scientists and entrepreneurs at the center and with nearby academic, medical, and research institutions." answer the question "About how much capital did Accelerator raise as of the middle of 2014?"

A:
yes