Two agents of erosion are chiefly responsible for sculpting the present Yosemite landscape&#151;flowing water and glacial ice: flowing water had the major role, and glacial ice added additional touches.
(glacial ice; added; additional touches) (flowing water; had; the major role) Context(flowing water had,List([127, 144))):(Two agents of erosion; are chiefly; responsible for sculpting the present Yosemite landscape)
flowing water had,List([127, 144))
glacial ice flowing water Two agents of erosion
added had are chiefly
additional touches
the major role
responsible for sculpting the present Yosemite landscape