YOU SAID:
the starfish crawled up the pebbly beach
INTO JAPANESE
ヒトデは小石のビーチを這った
BACK INTO ENGLISH
A starfish crawling on a pebble beach
INTO JAPANESE
小石のビーチの上でクロールヒトデ
BACK INTO ENGLISH
Crawling starfish on pebble beach
INTO JAPANESE
小石のビーチでクロールヒトデ
BACK INTO ENGLISH
Crawling starfish on pebble beach
That didn't even make that much sense in English.