Assertion: stringed instrument's string | /r/HasProperty | tuned to e.
Facets:
value: on a guitar
type: OTHER
value: often
type: TEMPORAL
value: from this
type: OTHER
Source sentences:
text: On a guitar, often the lowest string is tuned to an E. From this, each successive string can be tuned by fingering the fifth fret of an already tuned string and comparing it with the next higher string played open.