We constrain by definition the lexical entries with clause-bounded scope to take scope only at clauses.
for instance, here there are the lexical entries for not, no and every: After the full interpretation of the minimal clause which they appear in, the category C has to be converted to category S. one can use the following silent lexical entry: This step ensures that clauses (of category C) can be further processed as pieces of discourse (of category S), because all discourse connectors (such as the dot or if) are allowed to take only expressions of category S as arguments.