For example, one coder might well decide that the direction of the sales change is no longer sufficiently clear, as is the impact of the weather on the sales change, and, as a result, code this statement as neutral, that is as NEU, EXT, NEU under Sent_Tone, Attr, Attr_Tone.
another coder might well decide to make the ambiguity inherent in the statement explicit by marking this sentence as UNSURE, EXT, UNSURE.