$\begin{array}{cc}\text{mrow}& \\ \text{frac}& \frac{}{}\\ \text{sqrt}& \sqrt{}\\ \text{root}& \text{exception 25:}\\ \text{style}& \\ \text{error}& \\ \text{padded}& \\ \text{phantom}& \phantom{}\\ \text{fenced}& \left(\right)\\ \text{enclose}& \overline{)}\\ \text{sub}& {}_{}\\ \text{sup}& {}^{}\\ \text{subsup}& {}_{}^{}\\ \text{under}& \underset{}{}\\ \text{over}& \stackrel{}{}\\ \text{underover}& \underset{}{\overset{}{}}\\ \text{multiscripts}& \\ \text{table}& \begin{array}{}\end{array}\\ \text{table row}& \begin{array}{}\end{array}\\ \text{table cell}& \begin{array}{c}\end{array}\end{array}$