Because it is multiple choice and because there is of course a universal "human logic" to the symbols on some level, it is possible to guess correctly -- sometimes even on the first try! I feel very good when I get it on the first try :)
EDIT FOR VICTORY: 
Thank you and thanks for making the game! I think the art style, the encouraging "you can do it!" starting text, the bubbles, the retro checkerboard, the sun "thinking" about the next word -- it's all great. I hope you continue to make these games and many people can have this experience from them. Learning is always fun, but to hit the right ratio of learning and gameplay is magic :)