Q:

Search a string for a word/sentence and print the following word

I have a string that has around 10 lines of text. What I am trying to do is find a sentence that has a specific word(s) in it, and display the word following. 
Example String: 

The quick brown fox
The slow donkey
The slobbery dog 
The Furry Cat

I want the script to search for 'The slow', then print the following word, so in this case, 'donkey'.
I have tried using the Find function, but that just prints the location of the word(s).
Example code:
 sSearch = output.find("destination-pattern")
        print(sSearch)

Any help would be greatly appreciated. 

A:

output = "The slow donkey brown fox"
patt = "The slow"
sSearch = output.find(patt)
print(output[sSearch+len(patt)+1:].split(' ')[0])

output:
donkey

