Complex sentence: At the intersection of Suffolk CR 47, if you look north, you can see the elevated Copiague Station over the street, which you can also see from the next block at the intersection of an unnamed street leading to Railroad Avenue.
Split into simpler sentences: At the intersection of CR 47, the elevated Copiague Station over the street is visible to the north. The station can also be seen from the next block at the intersection of an unnamed street leading to Railroad Avenue.