叶

叶 = 十 + 口 : Maud Younger (y) practised a trick shot all day in the elevator's bathroom (e4). She's now able to throw a leaf (叶) high in the air, then quickly throw a mandarin (口) and beat the mandarin with a cross (十) like a baseball with a bat so that the mandarin rips a hole right into the leaf.

叶 = 十 + 口 : You could see the cross 十 as the leaves 叶 of the mandarin 口.

十 = 一 + 丨 : Mnemonic symbol: a holy cross. Sherlock Holmes (sh-) is investigating a very strange thing he found in the kitchen of the space station (-2): A big pyramid made of ten (十) crosses (十), which are in turn made out of flutes (一) and dinosaur bones (丨).

Mnemonic symbol: 口 shall be represented by a mandarin. Karl Marx (k-) is enjoying a mandarin in the outhouse's living room (ou3).