question:
In mid 2011, the Foundation announced in its new "Water, Sanitation, Hygiene Strategy Overview" that its funding now focuses primarily on sanitation, particularly in sub-Saharan Africa and South Asia, because access to improved sanitation is lowest in those regions.
What has been the focus since 2011

answer: no

question:
The largest parks in the central area of London are three of the eight Royal Parks, namely Hyde Park and its neighbour Kensington Gardens in the west, and Regent's Park to the north.
How many royal parks are located in the center of London?

answer: yes

question:
The human eye is markedly less sensitive to light above 700 nm wavelength, so longer wavelengths make insignificant contributions to scenes illuminated by common light sources.
Up to what wavelength does the human eye perceive IR LED sources as red?

answer: no

question:
Small monopoles are used as nondirectional antennas on portable radios in the HF, VHF, and UHF bands.
What are small monopoles used as?

answer:
yes