GK One-Liners

Fast-reading formats designed for rapid revision.

Answer рд╕рд╛рдорд░реНрдереНрдп(strength), рдХрдареЛрд░рддрд╛(Hardness),рдЪрд┐рдк-рдЪрд┐рдкрд╛рдкрди(Toughness),рджреГрдврд╝рддрд╛(soundness)