Dictionary num$\_$to$\_$word contains key$-$value pairs $9\mathrm{.}0$: 'nine point zero', $8\mathrm{.}5$: 'eight point five', $7\mathrm{.}5$: 'seven point five', and $5\mathrm{.}5$: 'five point five'. In the try block, float num$\_$key is read from input. The key$-$value pair with num$\_$key as the key is deleted from num$\_$to$\_$word. Complete the following tasks:

Write an exception handler to catch ValueError and output 'float$()$: A float is expected.$\text{'}$

Write an exception handler to catch KeyError and output 'num$\_$key cannot be deleted from num$\_$to$\_$word.$\text{'}$