\usetikzlibrary{positioning}
\tikzset{every label/.style={ font=\sffamily }}
\tikzset{every entity/.style={ draw = blue!50!black, thick, font=\sffamily\bfseries }}
\tikzset{every value/.style={ draw = blue!50!black, thick, font=\sffamily\bfseries  }}
\begin{tikzpicture}
\node[entity] (Person) at (1.5,0) {Person\\(.name)};
\node[role, label = below: smokes] at (0,0) {} edge (Person);
\end{tikzpicture}
