Assertion: plastic sextant | /r/ObjectUse | used for practical navigation
Facets:
value: at sea
type: LOCATION
value: quite successfully
type: MANNER
Source sentences:
text: While it is true that they are not as accurate as metal sextants and they are indeed more sensitive to the sun than metal sextants are, plastic sextants can with special care still be used quite successfully for practical navigation at sea, and they provide a less-expensive alternative to metal sextants, for both new navigators or seasoned mariners looking for a back up to GPS.