Hi Canone please provide me solution how can achieve the result below:

File1.txt

$
sweet apple£1
scotish
green
$
This is a test1
$
sweet mango£2
asia
yellow
$
This is a test 2
$
sweet apple red (there is no pound symbol here)
germany
green
$
This is a test 3
$


Result required: delete the word "sweet" from lines which has a "£" symbol and everything after £ in that line. And delete exactly two lines below £. Expected result as:

$
apple£
$
This is a test
$
mango£
$
This is test2
$
sweet apple red (there is no pound symbol here)
germany
green
$
This is a test 3
$