Assertion: ruler | /r/HasProperty | instrument
Facets:
Source sentences:
text: A ruler, is an instrument used in geometry, technical drawing and engineering/building to measure distances and/or to ruler straight lines.
text: Strictly speaking, the ruler is the instrument used to rule lines and the calibrated instrument used for determining measurement is called a measure.
text: A ruler is an instrument used to measure distances, degrees and determine straight lines.
text: A ruler or rule is an instrument used in geometry, technical drawing and engineering/building to measure distances and/or to rule straight lines.