AppleScript to delete the whole line if ..

Question

Im using the following code to find and replace with "target word" but I would like to DELETE the whole line instead of replacing the actual word.
so it would be
if the line contains www.network -> Delete the whole line.
Thanks in advance!
set theTargetWords to {"www.network"}
tell application "Pages" to activate
tell application "System Events" to tell process "Pages"
  -- Open the "Find & Replace" window:
  keystroke "f" using command down
          repeat until exists window "Find & Replace"
          end repeat
          tell tab group 1 of window "Find & Replace"
  -- Adjust the settings:
  click radio button 2 -- Advanced
                    if value of checkbox 2 is 1 then click checkbox 2 -- Don't match case
                    if value of checkbox 3 is 1 then click checkbox 3 -- Whole words
                    if value of checkbox 1 is 0 then click checkbox 1 -- Search previous text (loop)
  click pop up button 1 -- find in
  click menu item 1 of menu 1 of pop up button 1 -- Entire document
  click pop up button 2 -- replace style
  click menu item 1 of menu 1 of pop up button 2 -- Any
  -- Delete every target word:
                    set value of text area 1 of scroll area 2 to ""
                    repeat with thisWord in theTargetWords
                              set value of text area 1 of scroll area 1 to thisWord -- the target word
                              click button "Replace All"
                    end repeat
          end tell
end tell

Answer 1

if you want to script an application, read and use the application scripting dictionary. using System Events to script the GUI is something you should only do as a last resort. It creates clunky, slow, overly complex, and breakable scripts.
try this to start:
tell application "Pages"
          delete (every paragraph of body text of document 1 whose contents contains "some key phrase")
end tell