A preposition is a word that describes mainly the position of a noun. The prepositional phrases in this statement include "spiders jump out of special burrows" with of being preposition and "burrows to catch grasshoppers." To is the preposition. Spidees is the noun for both of these
The nonstandard phrase in this sentence is "kind of". It is more likely to be considered as an american English slang rather than as a part of the native English language.
Answer:
I believe it's this dude "A symbol is often surrounded by text that directly explains the theme."
THAT'S ALL FOLKS ヾ(^∇^)