YOU SAID:

when i was small there was a horse, which isn't a pony even though they are similar

INTO JAPANESE

私が小さい頃は、馬がいました。馬は似ていても馬ではありません

BACK INTO ENGLISH

When I was little, I had a horse. Horses are similar, but they're not horses.

INTO JAPANESE

小さい頃は馬を持っていた。馬は似ていますが馬ではありません

BACK INTO ENGLISH

I had a horse when I was little. Horses are alike, but not horses.

INTO JAPANESE

小さい頃は馬を持っていた。馬は似ているが、馬は似ていない。

BACK INTO ENGLISH

I had a horse when I was little. Horses are alike, but horses are not.

INTO JAPANESE

小さい頃は馬を持っていた。馬は似ているが、馬は似ていない。

BACK INTO ENGLISH

I had a horse when I was little. Horses are alike, but horses are not.