How to create multi-dimension string array

I was thinking to create something like

Code:

 a = {  {"a1", "a2"}, {"b1", "b2", "b3"} }

Is it possible to do it in array type?
Could someone give me some hint how can I acheive this?

You can't assign arrays, but you can initialise them

Code:

int main( ) {
  char a[2][3][3] = {  {"a1", "a2"}, {"b1", "b2", "b3"} };
  char *b[2][3] = {  {"a1", "a2"}, {"b1", "b2", "b3"} };
  return 0;
}

thank you again.