\section{Examples of Statements}
\label{appendix:examplestatement}

A \statement/ is complete when it contains all the predicates needed to completely specify objective knowledge pertaining to a subject, i.e. a \statement/ includes all co-dependent predicates. We borrow this notion of completeness from the fields of natural science. An important implication of these definitions is that within a single statement, multiple predicates cannot carry information about the same `property'. This implies, for example, multiple measurements of the same variable in \textit{n} different conditions will lead to \textit{n} different statements. While complete \statements/ are extremely valuable, we find that incomplete \statements/ are quite resourceful, especially as we apply our ideas to domains outside of natural science.

Examples of statements from other domains are shown below.

\textit{Basic Sciences:} Consider the following piece of text or unstructured data. ``At a pressure of one atmosphere (atm), water freezes (solidifies) at 0 $^{\circ}$C and water boils at 100 $^{\circ}$C.'' We note that to completely describe the phase changes of water, we need to specify both temperature and pressure. Leaving any one of temperature or pressure out makes the information regarding phase change incomplete. This information is presented as \statements/ in the Tables \cref{tab:statment_water_freezing} and \cref{tab:statment_water_boiling}. This example demonstrates that multiple statements can be extracted from even single sentences. 

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Material Science: Phase change of water from solid to liquid.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Chemical & Water & freezing temperature & 0 & $^{\circ}$C \\
    Chemical & Water & pressure & 1 &  atmosphere \\
    \hline
    \end{tabular}
    \label{tab:statment_water_freezing}
    \end{center}
\end{table*}

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Material Science: Phase change of water from liquid to gas.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Chemical & Water & boiling temperature & 100 & $^{\circ}$C \\
    Chemical & Water & pressure & 1 &  atmosphere \\
    \hline
    \end{tabular}
    \label{tab:statment_water_boiling}
    \end{center}
\end{table*}

\textit{Physics: } 

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Physics: Speed of light.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Boson & Light & speed & 299\,792\,458 & $m s^{-1}$ \\
    Boson & Light & medium & vacuum &   \\
    \hline
    \end{tabular}
    % \label{tab:statment_water_boiling}
    \end{center}
\end{table*}

Independent properties make independent statements, as shown below.

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Physics: Mass of electron.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Fermion & Electron & Mass & $9.1093837015 \times 10^{-31}$ & kg \\
    \hline
    \end{tabular}
    % \label{tab:statment_water_boiling}
    \end{center}
\end{table*}

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Physics: Charge of electron.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Fermion & Electron & Electric Charge & $ - 1.602176634 \times 10^{-19}$ & C \\
    \hline
    \end{tabular}
    % \label{tab:statment_water_boiling}
    \end{center}
\end{table*}

\begin{table*}[!h]
\begin{center}
    \caption{Example Statement from Physics: Charge of electron.}
    \begin{tabular}{ccccc}
    \hline
    Subject & Subject Value & Property  & Property Value & Unit\\
    \hline
    Fermion & Electron & Spin & 1/2 & $h$ \\
    \hline
    \end{tabular}
    % \label{tab:statment_water_boiling}
    \end{center}
\end{table*}