Assertion: unit's symbol | /r/AtLocation | use
Facets:
value: presently
type: MANNER
value: for the astronomical unit
type: TRANSITIVE-OBJECT
Source sentences:
text: In 2012, the IAU, noting "that various symbols are presently in use for the astronomical unit", recommended the use of the symbol "au", as did the American Astronomical Society (AAS) in the manuscript preparation guidelines for its principal journals.