The Sentence Diagram Generator will visually represent the grammatical structure of the provided sentences as follows:

1. Sentence 1: "Detecting multiple leviathan class lifeforms in the region."

   • Main clause: "Detecting"
     • Direct Object: "lifeforms"
       • Modifier: "multiple"
       • Modifier: "leviathan class"
     • Prepositional Phrase: "in the region"

2. Sentence 2: "Are you certain whatever you're doing is worth it?"

   • Main clause: "Are you certain"
     • Subject: "you"
     • Predicate: "are"
     • Complement: "certain"
       • Noun Clause: "whatever you're doing"
         • Subject: "whatever"
         • Predicate: "are doing"
           • Subject: "you"
       • Predicate: "is worth it"
         • Complement: "it"

This representation captures the grammatical relationships and structure of the sentences.