Assertion: line shape | /r/HasProperty | positioned at two c1s structures
Facets:
value: approximately
type: DEGREE
Source sentences:
text: The synthetic PAA spectrum in Figure 13 has been constructed from a set of Gaussian/Lorentzian line-shapes approximately positioned at the experimental values for the valance band, two C1s structures, two O AES peaks and one O 1s photoelectric peak.