\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{trees}
\begin{document}
\begin{tikzpicture}[edge from parent fork right,grow=right,level distance=3cm,level 1/.style={sibling distance=4cm},
level 2/.style={sibling distance=1cm}]
\node[text width=1cm] {Idea General}
child {node {Some idea}}
child {node {Some idea}
child {node {Details}}
child {node {Details}}
child {node {Details}}
};
\end{tikzpicture}
\end{document}
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\documentclass{article}
\usepackage{schemata}
\begin{document}
\schema
{
\schemabox{level One}
}
{
\schema
{
\schemabox{Level Two}
}
{
\schemabox{two 1\\two 2\\two 3}
}
\schema
{
\schemabox{level Two}
}
{
\schemabox{two 4\\two 5}
}
}
\end{document}
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