Complex sentence: Tacit knowledge has been described as "know-how"--as opposed to "know-what" (facts), "know-why" (science), or "know-who" (networking).
Split into simpler sentences: Tacit knowledge has been described as "know-how"--as opposed to "know-that" (facts). There are further distinctions: "know-why" (science), or "know-who" (networking).