( ( Every year ) ( , ( there ( ( ( ( are ( ( ( ( ( at least ) two ) ( lunar eclipses ) ) and ) ( as ( many ( as five ) ) ) ) ) , ) ( although ( ( total ( lunar eclipses ) ) ( are ( significantly ( less common ) ) ) ) ) ) . ) ) ) )
(ROOT (S (NP (DT Every) (NN year)) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (QP (IN at) (JJS least) (CD two)) (JJ lunar) (NNS eclipses)) (CC and) (NP (QP (RB as) (JJ many) (IN as) (CD five)))) (, ,) (SBAR (IN although) (S (NP (JJ total) (NN lunar) (NNS eclipses)) (VP (VBP are) (ADJP (RB significantly) (RBR less) (JJ common)))))) (. .)))
Every year, there are at least two lunar eclipses and as many as five, although total lunar eclipses are significantly less common.
(ROOT (S (NP (CD Two)) (VP (VBZ is) (NP (NP (DT the) (JJ minimum) (NN number)) (PP (IN of) (NP (NP (NNS times)) (SBAR (S (NP (DT a) (JJ partial) (NN lunar) (NN eclipse)) (VP (MD will) (VP (VB occur) (NP (DT each) (NN year)))))))))) (. .)))