Based on negotiations with personnel , some 20 % have indicated their willingness to move to the new location .
The sentence indicates that negotiations have taken place and a portion of the personnel (20%) have shown willingness to move to the new location. There is no negative or positive connotation in the sentence. It is simply stating a factual situation which makes the sentiment neutral.
Analyze the sentence and determine if the sentiment of the sentence is neutral, positive or negative.

Based on negotiations with personnel , some 20 % have indicated their willingness to move to the new location .
user
The sentence indicates that negotiations have taken place and a portion of the personnel (20%) have shown willingness to move to the new location. There is no negative or positive connotation in the sentence. It is simply stating a factual situation which makes the sentiment neutral. Therefore, the sentiment of the sentence is neutral.
assistant