Problem: Does "The band have supported Beyonce in most subsequent live performances, including her 2007 concert tour The Beyonce Experience, 20092010 I Am... World Tour and 20132014 The Mrs. Carter Show World Tour." answer the question "What are Beyonce's backup singers called?"

A: no

Problem: Does "In ionic compounds, hydrogen can take the form of a negative charge (i.e., anion) when it is known as a hydride, or as a positively charged (i.e., cation) species denoted by the symbol H+." answer the question "What charge does hydrogen display in ionic compounds when it is called a hydride?"

A: yes

Problem: Does "The Plymouth Marine Laboratory is an offshoot of the MBA." answer the question "What organization known as the MBA is based in Plymouth?"

A:
no