Assertion: patent's number | /r/HasProperty | simple
Facets:
Source sentences:
text: (b) Numbers and letters identifying the views must be simple and clear and must not be used in association with brackets, circles, or inverted commas.
text: (2) Numbers and letters identifying the views must be simple and clear and must not be used in association with brackets, circles, or inverted commas.
text: Numbers and letters identifying the views must be simple and clear and must not be used in association with brackets, circles, or quotation marks.
text: Numbers, letters and lead lines must be simple and clear; numbers and letters must be at least 0.32cm in height.