Whose pen is this?

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BLACKYVUPOTHTHDCQWSR QPRUPQLFAHUAFNFEVMWV XNOGZOBBIDNSKBIGKCGX WJITFYUSLGSICDEKWFTK NPRLGOTSUMAWAOSONQRC EHYHGRIVANFMJZAOWVNC POOASTELLVFSZLCBCDGH DNBYQBLETHLZGALTIFCT FEXIHRLTNACLPWIXRAIR ZUBTMIZAMKAWBGCEZWBY UQMFRGGICWCESFNTKOXU JGKTCKNYQDCRNXEVTKMI KBHRPABLNJUJHAPTEVTD EOUHGIIGRONEWILYDIHE IFAOIZCIYRYNWERPCDRZ SDJRUICLOADAAIIMRSGE SVDLDBYXKEBLNYUMHIFT KDIWHOSEMBBGORQBEQAA OPZWFEZTHPCPURPAGXJH DQNEWKPUNQMINEUYRCAT
1.
WHOSE
2.
THIS
3.
PEN
4.
PENCILCASE
5.
PHONE
6.
BOTTLE
7.
TEXTBOOK
8.
TOP
9.
THAT
10.
MINE
11.
YOURS
12.
BLACK
13.
BAG
14.
SMALL
15.
NEW
16.
BEAR
17.
KEYRING
18.
ANIMALS
19.
GREEN
20.
BIG
21.
OLD
22.
AIRPLANE
23.
HAS
24.
JACK
25.
ANN