There's a sore on his right pinky finger, a raw spot, flesh rubbed off to blood against the oak, from where he was clawing the chair.
The sore may be cause from the rough material of the chair.
mnli hypothesis: The sore may be cause from the rough material of the chair. premise: There's a sore on his right pinky finger, a raw spot, flesh rubbed off to blood against the oak, from where he was clawing the chair.