Example :

A1 : mother and father
A2 : mother
A3 : empty cell
A4 : uncle and nice
A5 : uncle
A6 : uncle and
A7 : empty cell

I need the macro to analyse the column and to put the result in a different
column . The result should be :

B1 : mother and father
B2 : uncle and nice

So , "mother" is found in A1 . If same keyword is found in the next 1 to n
cells , it delets content from those cells . The content from A1 is put in
B1 . There is always at least an empty cell (like A3 in my example) between
cells containing the text to be analysed . The macro moves to A4 where it
finds "uncle and nice" . The cells A5 and A6 contain at least one word that
is in A4 cell , so they are deleted . The content from A4 is put in B2 cell