韌勁

韧 = 刃 + 韦 : Robinson Crusoe (r) got a brand new zweihänder (刃). In order not to hurt himself during his first practice in the encampment's bathroom ((e)n4) he also got a pair of very durable (韧) and strong (韧) soft leather gloves (韦).

劲 = 又 + 工 + 力 : Joan of Arc (ji) is training with lots of energy (劲) in the encampment's bathroom ((e)n4). Again and again the presses a power button (力) which releases a boxing glove (又) fixed to a steel beam (工) which she has to hit with her fist to punch it back into its original position.