YOU SAID:
Rabbit eating dinner in the mailbox
INTO JAPANESE
ウサギが郵便受けで夕食を食べる
BACK INTO ENGLISH
Rabbit eats dinner in mailbox
INTO JAPANESE
ウサギは郵便受けで夕食を食べる
BACK INTO ENGLISH
the rabbit eats dinner in the mailbox
INTO JAPANESE
ウサギは郵便受けで夕食を食べる
BACK INTO ENGLISH
the rabbit eats dinner in the mailbox
That didn't even make that much sense in English.