Q$3$ Language descriptions $3$ Points Which strings are a part of the following language? Give your answer as a set.

$[$ L$=\{$x in $\{0,1\}^*|$ u in $\{0,1\}^*$: $$ v in $\{0,1\}^*$: $$ w in $\{0,1\}^*$:$(|$u$|=|$w$|)($x$=$v$).$; $($u v w$=10101111011)\}]$