i

Simple sentences consist of an independent clause (a clause that will stand alone, grammatically): they consist of a subject, a finite verb and (possibly) an object. They are great for making strong statements and for clarity.

ii

Simple Sentence:The probewas placedin the cylinder.
SFL description:ParticipantProcessCircumstance
TG description:Subject
Definite Article, Noun
Finite verb (passive, simple past tense)Prepositional phrase of location
Preposition, Definite Article, Noun