Assertion: mandolin's string | /r/HasProperty | checked
Facets:
Source sentences:
text: The process requires just 4 strings to be checked: the 2 G strings (the thickest strings or SOL strings) and the 2 E strings (the finest strings or MI strings).
text: The other 4 strings (A and D or LA and PE) do not need to be checked, since if the external strings are correct, then the internal strings are automatically corrected.