how this is wording can some one explain

# Create a simple list of words
#
word = [ "one","two","three"]

# Create a new list of pairs of elements of word.
# Each pair will be the first i entries and the remaining entries, as i
# goes from 0 to the number of words
#
splits     = [(word[:i], word[i:]) for i in range(len(word) + 1)]
splits

[([], ['one', 'two', 'three']), (['one'], ['two', 'three']), (['one', 'two'], ['three']), (['one', 'two', 'three'], [])]

# Create a list from each entry combining the first item
# with the last 1 to n of the second item, in each pair,
# ignoring any where the second item is null.
#
deletes    = [a + b[1:] for a, b in splits if b]
deletes

[['two', 'three'], ['one', 'three'], ['one', 'two']]