Assertion: concertina's fold | /r/HasProperty | made to the front
Facets:
value: alternatively
type: MANNER
value: back in zig-zag folds
type: MANNER
Source sentences:
text: A concertina fold, also known as a zig-zag fold, accordion fold or z-fold, is a continuous parallel folding of brochures and similar printed material in an accordion-like fashion, that is with folds alternatively made to the front and back in zig-zag folds.