Leather is an item used to make item frames, armor and books. Source: Minecraft API

Leads are tools used to leash and lead passive and neutral animals, golems and some monsters. Source: Minecraft API

A lava bucket is a bucket filled with lava. Source: Minecraft API

Grass is a non-solid plant block that has wheat seeds as a drop. Its color is biome-dependent, and matches the color of grass blocks. Source: Minecraft API

Amethyst buds are the first three stages of growth of amethyst clusters, which grow on budding amethyst. Source: Minecraft API

Lapis lazuli ore is the ore block from which lapis lazuli is obtained. Source: Minecraft API

Lapis lazuli is a mineral used for enchanting and decoration. Source: Minecraft API

Lanterns are blocks that emit light. Source: Minecraft API

Ladders are wooden blocks used for climbing walls either vertically or horizontally. They can be placed only on the sides of other blocks. Source: Minecraft API

A knowledge book is a utility item that reveals available crafting recipes to the player when used. Source: Minecraft API