* Thief: Noun (subject of the sentence)
* Pilfered: Verb (past tense, action performed by the subject)
* Jewels: Noun (direct object of the verb, what was pilfered)
* From: Preposition (shows the relationship between the jewels and the safe)
* The: Definite article (modifies the noun "safe")
* Safe: Noun (object of the preposition "from")