| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE >
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE >
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "" "taco"">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "" "taco">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "" "tai'co">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "go'of" "">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "go" "">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "go:hh   of" "">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE potato "W3C-//dfdf" "">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE html "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE ...>
| <html>
|   <head>
|   <body>
|     "Hello"

| <!DOCTYPE html "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
| <html>
|   <head>
|   <body>

| <!DOCTYPE html "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
| <html>
|   <head>
|   <body>

| <!DOCTYPE root-element>
| <html>
|   <head>
|   <body>
|     "]>"

| <!DOCTYPE html "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd">
| <html>
|   <head>
|   <body>

| <!DOCTYPE html "" "http://www.w3.org/DTD/HTML4-strict.dtd">
| <html>
|   <head>
|   <body>
|     <b>
|       "Mine!"

| <!DOCTYPE html "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
| <html>
|   <head>
|   <body>

| <!DOCTYPE html "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
| <html>
|   <head>
|   <body>

| <!DOCTYPE html "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
| <html>
|   <head>
|   <body>

