Accent and spaces testing

\widetilde{xxxxx}
\widetilde{xxxxx}
a\,\widetilde{x}\:\widehat{yy}\;\widetilde{xxx}\;\widehat{yyyy}\quad\widetilde{xxxxx}\quad b
x\hat{xyz}\qquad \widetilde{xxx}\quad\widetilde{ttt}x
\acute{x} \grave{x} \ddot{x} \tilde{x} \bar{x} \breve{x} \check{x} \hat{x} \vec{x} \dot{x} \ddot{x} \dddot{x} \ddddot{x} \widetilde{xxx} \widehat{xxx}
a\,\widetilde{x}\:\widehat{yy}\;\widetilde{xxx}\;\widehat{yyyy}\quad\widetilde{xxxxx}\quad b
a\,\widetilde{t}\:\widehat{yy}\;\widetilde{ttt}\;\widehat{yyyy}\quad\widetilde{ttttt}\quad b
t\hat{tyz}\qquad \widetilde{ttt}t
\acute{t} \grave{t} \ddot{t} \tilde{t} \bar{t} \breve{t} \check{t} \hat{t} \vec{t} \dot{t} \ddot{t} \dddot{t} \ddddot{t} \widetilde{ttt} \widehat{ttt}