Ƙirƙiri wani nau'i mai mahimmanci na wannan jumla Donald Roy Pettit (wanda aka haife shi a ranar 20 ga Afrilu, 1955) shi ne injiniyan injiniya na Amurka da kuma NASA.
Tabbas, wani nau'i mai rikitarwa na jumla shine "Donald Roy Pettit (an haife shi a ranar 20 ga Afrilu, 1955) wani dan saman jannati ne na Amurka, wani tsohon soja na tsawon watanni shida a cikin tashar sararin samaniya ta duniya da kuma tafiya na makonni shida don neman meteorites a Antarctica. "