What is missing??

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RWNDLMWCUIIT HNBHVSAZATZM GEUEMQHGIRLI POBAITUCFFYN RUAZBTRNFGCJ SZIXOBBEMCSC RYDSOVIJEFLF PKFWKTOYXNMF EESKXEYPCKLP DTXGAONLGKMR UAXOWSITBOHV RCHDJWNDLMQA
1.
cat
2.
book
3.
tree
4.
dog
5.
car