Here is the full solution for CraftConnections Day 46. Each group is shown with its difficulty colour and a redundant shape, so it stays readable if you are colour blind.
Classic — Day 46
● You can eat these Cooked Cod · Cooked Salmon · Pumpkin Pie · Melon Slice
▲ Crafted with redstone Compass · Crafter · Oxidized Copper Bulb · Block of Redstone
◆ These only stack to 16 Written Book · Egg · Bucket · Armor Stand