heres another problem... more interesting than the previous

APARTMENTS

A , B , C and D each live in an apartment.

1) Their apartments are arranged like this :
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| a | b | c | d | ---------> EAST
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alrite the figure is a bit distorted ... but anyways the idea is tat a, b , c , d are the 4 apartments in which A , B , C , D are residing ( NOT RESPECTIVELY) , the direction too has been shown

2) One of the four is the landlord
3) If C's apartment is not next to B's then A is the landlord and resides in a.
4) If A's apartment is east of C's then D is the landlord and resides in d.
5) If B's apartment is not next to D's then C is the landlord and resides in c.
6) If D's apartment is east of A's then B is landlord and resides in b.

Who is the landlord and what is the arrangemnt of the apartments ( ie who is in which aaprtment) ?????