graph
   {
   subgraph cluster01
   {
   n00[label="LSTM"];
   n01[label="it"];
   n02[label="ft"];
   n03[label="gt"];
   n04[label="ot"];
   n05[label="ct"];
   n06[label="ht"];
   n00--n01;
   n00--n02;
   n00--n03;
   n00--n04;
   n00--n05;
   n00--n06;
   }
   }