[y-] Yoshi is [2] inside the [-an] pawn shop, where he works. He is 研 researching how to make 石 stone 开 gates that he can sell at the pawn shop as a side-hustle. He uses his big spotted egg to hit and 研 grind a big 石 stone, trying to turn it into a 开 gate. Every now and then he stops and looks at a second-hand book that is on the counter to 研 research how exactly to proceed.