So i think what your getting at is.
If there is 16 people selling parcels at 1.3cents Just say 5million shares combined.
If one person buys all 5million at 1.3cents, you would consider that a BUY?
I can do this on Iguana Spark software also, I would say 1 person selling 5million shares at 1.3cents is worse than 15 people selling 5million shares at 1.3cents. But the sell down remains fact.
That is the only thing that I can determine would put something into a "BUY" category as apposed to a "SELL" Category.
However it all boils down to sell bids matching buy bids. That is the raw trading data, if you want to value add to the data to seperate price action into buys and sells. That doesnt take away from the fact that it was a sell down.
I would say what your saying is subjective, more than fact.