Don't Want To Retrieve 'unity'

declare @TempAddressParsingTable table(
id_voter int null,
id_town varchar(10) null,
full_address varchar(200) null,
ad_num int null,
ad_str1 varchar(100) null,
ad_num_suffix_a varchar (10) null,
ad_num_suffix_b varchar (10) null,
ad_unit varchar(100) null)

insert @TempAddressParsingTable (ad_str1)
select 'apple UNITY RD' union all
select 'watermelon UNITY RD unit#32' union all
select 'currency UNITY RD unit# 99' union all
select 'marrakesh UNITY RD unit #32'


select * from @TempAddressParsingTable where ad_str1 like '%unit%'
select * from @TempAddressParsingTable where ad_str1 like '%unit%'
and ad_str1 not in (select ad_str1 from @TempAddressParsingTable where ad_str1 like '% unity %')



NULL
NULLNULLNULLapple UNITY RDNULLNULLNULLNULL
NULLNULLNULLwatermelon UNITY RD unit#32NULLNULLNULLNULL
NULLNULLNULLcurrency UNITY RD unit# 99NULLNULLNULLNULL
NULLNULLNULLmarrakesh UNITY RD unit #32NULLNULLNULL



trying to write a code to display record sets where there are only "units". "apple unity rd" should not be shown.