What do parentheses in a C variable declaration mean?

int (*data[2])[2];

double (*elephant)[20];

int *(*crocodile)[15];

int (*data[2])[5];

int (*data[2])[5];
int x1[5];
data[0] = &x1;
data[1] = &x1;

data[2] = &x1;//<--- out of bounds, crash data has no 3rd element
int y1[10];
data[0] = &y1;//<--- compiling error, each element of data must point to an int[5] not an int[10]

char *p;

int (*data[2])[5];

void **(*(*weird)[6])(char, int);

typedef void **(*sillyFunction)(char, int);

sillyFunction (*weird)[6];