Problem #WSP-100000

Problem

Split the numbers from $1$ to $9$ into three triplets such that the sum of the three numbers in each triplet is prime. For example, if you split them into $124$, $356$ and $789$, then the triplet $124$ is correct, since $1+2+4=7$ is prime. But the other two triples are incorrect, since $3+5+6=14$ and $7+8+9=24$ are not prime.