Hash with chaining representation of the hash table
|key:-hmmdump|len:8|val=1|->NULL
|key:-svq4svq|len:8|val=1|->|key:-lminmemory|len:11|val=1|->NULL
|key:-lm|len:3|val=1|->NULL
|key:-beam|len:5|val=1|->NULL
The total number of keys =5