Oregon Brewers Festival
Oregon Brewers Festival ( OBF ) is a four-day craft beer festival held annually since 1988 at the Tom McCall Waterfront Park in downtown Portland , Oregon , except 2020 when the COVID-19 pandemic caused it to be cancelled . 
<triplet> Oregon Brewers Festival <subj> beer festival <obj> instance of <triplet> COVID-19 pandemic <subj> 2020 <obj> point in time