In 1952 a huge wave of UFOs flew straight over the White House
and The Capitol.
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Mariko Mori has written:
'Wave UFO' -- subject(s): Exhibitions, Sculpture
'Esoteric cosmos' -- subject(s): Exhibitions
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a UFO See
http://grammar.ccc.commnet.edu/grammar/abbreviations.htm (all the
way to the bottom) for help determining when to use a or an before
an abbreviation.