### Clue: What one has in possession of sentence or sentience? (4)
### Answer: LIFE 
 ### Explanation: Definition: What one has in possession of sentence,sentience
 Double defn: 1st: Reference to a life sentence in prison; and 2nd: What one has if one has sentience;awareness.
I thought the clue should have read "… possession of sentience or sentence?", as the first part of the clue applies more to "sentience" than "sentence", which can stand alone.