Solids and diseases are pictophonetic characters. Solid (internal voice) disease (internal voice). "Tears" is a knowing word, not a pictophonetic word.
Pictophonetic characters are a form of Chinese characters, which are formed on the basis of pictographic characters, signifier characters and knowing characters. They are composed of two words or words, and they are composed of signifiers representing meaning categories. A method of word formation in which more than two words are combined to express a meaning.
Chinese characters made by literacy method are literacy.