Data's Day
In this episode , as Data contemplates the impending marriage of his friend Keiko Ishikawa to Transporter Chief Miles O'Brien , he learns about the peculiar minutiae – such as last-minute jitters and ballroom dancing – that surround human nuptials . 
<triplet> Keiko Ishikawa <subj> Miles O'Brien <obj> spouse <triplet> Miles O'Brien <subj> Keiko Ishikawa <obj> spouse