Does the sentence "People of Irish descent form the largest single ethnic group in the city, making up 15.8% of the population, followed by Italians, accounting for 8.3% of the population." provide a valid answer to the question "What is the second largest ethnic group in the city?"

A: yes

Does the sentence "The racial breakdown of Philadelphia's Hispanic/Latino population was 63,636 (33.9%)" provide a valid answer to the question "What is the percent of blacks?"

A: no

Does the sentence "The BBC has come under pressure to commission more programmes from independent British production companies, and indeed is legally required to source 25% of its output from such companies by the terms of the Broadcasting Act 1990." provide a valid answer to the question "What is a television show from Australia that was shown on the BBC?"

A: no

Does the sentence "The B-21 is projected to replace the B-52 and parts of the B-1B force by the mid-2020s." provide a valid answer to the question "How long is the B-52H scheduled to remain in service of the USAF?"

A:
no