1991 Atlantic hurricane season
The 1991 Atlantic hurricane season was the first season since 1984 in which no hurricanes developed from tropical waves , which are the source for most North Atlantic tropical cyclones . 
<triplet> 1991 Atlantic hurricane season <subj> 1991 <obj> point in time <subj> season <obj> instance of <triplet> 1984 <subj> season <obj> instance of <subj> 1984 <obj> point in time