YOU SAID:
The dove swallowed a pigeon and the swallow dove.
INTO JAPANESE
鳩が鳩を飲み込んだし、ツバメ鳩。
BACK INTO ENGLISH
Swallowed the Dove Dove and then swallow the Dove.
INTO JAPANESE
鳩鳩と鳩、ツバメを飲み込んだ。
BACK INTO ENGLISH
Swallowed the Dove Dove and pigeon, swallow.
INTO JAPANESE
鳩鳩およびハト、ツバメを飲み込んだ。
BACK INTO ENGLISH
Swallowed the Dove Dove and pigeon, swallow.
That didn't even make that much sense in English.