Complex sentence: Sanskrit nouns in this case often refer to a subject "out of" which or "from" whom something (an action, an object) has arisen or occurred--e.g., "patram vrikshaat patati" "the leaf falls from the tree".
Split into simpler sentences: Sanskrit nouns in this case often refer to a subject "out of" which or "from" whom something (an action, an object) has arisen or occurred. E.g. "patram vrikshaat patati" "the leaf falls from the tree".