Otto Jespersen was a Danish linguist who coined the term Content clause which are also know as what?
Content clause In grammar, a content clause is a subordinate clause that provides content implied or commented upon by its main clause. The term was coined by Otto Jespersen. They are also known as "noun clauses". There are two main kinds of content clauses: declarative content clauses (or "that"-clauses), which correspond to declarative sentences, and interrogative content clauses, which correspond to interrogative sentences.
Truth condition In semantics, truth conditions are that which obtain precisely when a sentence is true. For example, "It is snowing in Nebraska" is true precisely when it is snowing in Nebraska.