To “inquire” after something is to look into it or to ask questions regarding it. Likely, you know the word “inquiry,” which means a process of formal questioning (perhaps in a legal case, though other options are possible). When someone “delves” into something, he or she “digs” into it very deeply. The word’s first meaning is “to reach into,” though it is often used metaphorically to mean “to dig into” or “excavate.” It likewise can mean “to research very thoroughly.” Thus, our bridge sentence is, “As delving is a form of deep and detailed inquiry, so too is X a deep and detailed form of reflecting (or reflection).” To “mull over” something is not merely to dally and consider it. It means “to think deeply and for a long time over something.” For this reason, it is the best option among those provided.

When we say that something “satisfies,” it fulfills an expected need. Something that is “satiating” completely fills a need, and thus in this analogy could be said to mean “beyond adequate,” in comparison with “adequate,” which is implied by “sufficient.” Thus, our bridge sentence could be constructed, “As something that is satiating is more than sufficient (or sufficient to a great degree), so too is something X draining to a great degree.” Something “exhausts” when it literally drains everything out. It comes form the Latin literally meaning “drawing water out.”

Likely, you know the term “austere” as meaning strict or perhaps something like serious or “grave.” While these meanings are acceptable, the word can also mean “extremely plain, without frills or luxuries;” therefore, our analogy is one of increasing intensity. Think of the bridge sentence as being, “Just as something austere is very plain, so also is something X very ornate.” The word “baroque” is not merely the name of a period of history or music but can likewise mean “very elaborate or ornamented.” The word is taken from the ornamented style of the art of the period, though here applied more generally.

You likely have some exposure to the mythological character, Hercules (or Heracles), who in Greek mythology performed great deeds of strength. In English, to say something is “herculean” means that it is extremely difficult—as were his great labors. Thus, “herculean” stands as an intensified form of “difficult.” Your generalized bridge sentence would be, “As herculean things are very difficult, so X things are very small.” If something is minute, it is very small. Do not confuse this with the word for the division of time. The word is related to words like “miniscule” and “miniature,” each implying some degree of “smallness.”

Something immaculate is very clean. Roman Catholics speak of “Immaculate Mary,” meaning thereby to attribute absolute purity from sin to Mary, the mother of Jesus. The bridge sentence for our analogy could be formulated as, “As something very neat is called immaculate, so too is something very noisy called X.” Something raucous is disturbing and loud. Often, one will speak of “raucous partying,” implying by that “loud partying.” In general, something is “raucous” if it is loud and unsettling. For this reason, it fits the analogy, meaning well enough “very noisy.”

Something is gory when it is covered with blood, often shed because of violence. Thus, “bloody” is either a synonym or at least a characteristic of something that is “gory.” When something is “saturated,” it is completely filled. This word is most frequently used to mean “completely filled with water,” like a sponge that is fully saturated. The word is used in scientific expressions like “saturated fats” because these compounds are completely full of a particular kind of bond—they are saturated with them.

Something spiteful is nasty, as in spiteful speech that is meant to “tear down” someone else. Such actions cause hurt and pain, generally psychological but still real. Thus, the analogy could be written, “As something spiteful causes hurt, so does something blazing cause X.” A blaze is a strong fire, which can at least be said to produce heat. While this is not the most advanced vocabulary, it is the only option that describes an effect of something blazing.

"Lucky" and "fortuitous" mean roughly the same thing, just as "drab" is another word for "dreary."

"Adroit" is another word for "skillful;" similarly "illustrative" and "explanatory" mean roughly the same thing.

"Combustible" and "explosive" mean the same thing; just as "pliable" and "flexible" are synonyms.