Complex sentence: It tries hard to distinguish loans between Turkic and Mongolic and between Mongolic and Tungusic from cognates, and it suggests words that occur in Turkic and Tungusic but not Mongolic; all other combinations between the five branches also occur in the book.
Split into simpler sentences: It tries hard to distinguish loans between Turkic and Mongolic and between Mongolic and Tungusic from cognates; and it suggests words that occur in Turkic and Tungusic but not Mongolic. All other combinations between the five branches also occur in the book.