In this task, you need to identify the sentiment of the given sentence as one of 'positive' or 'negative.

Let me give you an example: tormented by the quickened blood of roots
The answer to this example can be: negative
Here is why: There is an expression of sadness in this poem text, hence it is negative.

OK. solve this:
the china dustless, the keen knife-blades bright,
Answer:
positive