( ( ( The bats ) ( near ( the entrance ) ) ) ( ( were ( covered ( with ( frost ( and ( ice crystals ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS bats)) (PP (IN near) (NP (DT the) (NN entrance)))) (VP (VBD were) (VP (VBN covered) (PP (IN with) (NP (NN frost) (CC and) (NN ice) (NNS crystals))))) (. .)))
The bats near the entrance were covered with frost and ice crystals.
(ROOT (S (NP (NP (DT The) (NN ice) (NNS crystals)) (SBAR (WHNP (WDT that)) (S (VP (VBP form) (PP (IN on) (NP (DT the) (NN ground))))))) (VP (VBP are) (VP (VBN called) (S (ADJP (JJ frost))))) (. .)))