This document discusses the use of the prepositions "in" and "from" when following adjectives in English. It provides examples of when to use each preposition. "In" is used to indicate places, activities, or periods of time. Examples include being "involved in a project" or "interested in someone." "From" is used to indicate a difference or compare one thing to another. Examples include being "safe from problems" or "tired from assignments." The document also includes a bibliography citing sources for the information on adjectives and prepositions.