\usepackage{pdflscape}
\usepackage{multirow,longtable}
\usepackage{amsmath,mathtools}
+\usepackage{amssymb}
+\usepackage[standard]{ntheorem}
+\usepackage{stmaryrd}
\usepackage[utf8]{inputenc}
+\usepackage{tikz}
+\usetikzlibrary{shapes,arrows}
% correct bad hyphenation here