$9,$ Normalized binary scientific notation is

$(-1{)}^{\text{s}\text{i}\text{g}\text{n}}1.{?}_2{2}^{yyyy}$

Write down the value of sign, $,$ and yyyy$,$ respectively for the following floating point binary number:

$(1)1001\mathrm{.}0101$

$(2)1\mathrm{.}000111$

$(3)-0\mathrm{.}0011101$