Assertion: magnetic field's source | /r/CapableOf | recommend drawing line
Facets:
value: physically
type: MANNER
Source sentences:
text: To take a map bearing or true bearing (a bearing taken in reference to true, not magnetic north) to a destination with a protractor compass, the edge of the compass is placed on the map so that it connects the current location with the desired destination (some sources recommend physically drawing a line).