Assertion: spear's studio album | /r/HasProperty | her best work
Facets:
value: critically
type: DEGREE
value: often
type: TEMPORAL
Source sentences:
text: Following a series of heavily publicized personal struggles and erratic public behavior beginning in 2006, Spears's career was interrupted, before the release of her fifth studio album Blackout (2007), which is often critically referred to as her best work.