Media Condition: Very Good Plus (VG+)
Sleeve Condition: Very Good (VG)

A side runout ends A 4U 13 2 I am unsure which version this is. Plays well just a few minor clicks.
 

Notes:

Side A: 'from dry to moist'
Side B: 'from soft to hard'

A & B2: Published by Perfect Songs
B1: Published by Dick James Music
℗ + © 1983 Zang Tumb Tuum

This UK 3rd press version lists the A side as having the Sex Mix (on both sleeve and label) while in fact it has the U.S. Mix with the duration of 7:20. 
This version can be identified by the stamped matrix 12 ZTAS 1 A - 4U on the A-side. Note that the last digits on each matrix number are very faintly pressed. Variants examples are listed in the 'identifier' section below.

Track B1 is listed on sleeve as Ferry Across The Mersey.

This UK 3rd press version was issued in the following sleeves: 
• Two Bodies sleeve with Island logo on back of sleeve (this entry here);
• Two Bodies sleeve without Island logo on back of sleeve;
• Who Chance Blink ZTT sleeve;
• Die-cut black matte sleeve with trimmed corners.
• U.S. Chequer board sleeve (these were shipped back from the U.S.A.).

Some Two Bodies artwork copies came with a sticker on sleeve, "SPECIAL U.S. REMIX 12 ZTAS 1".
Durations do not appear on the release.

Please see the Master Release Notes for links to other similar 12 ZTAS 1 releases.

Runouts:
They are stamped except in side B '12-IS-ZTAS-1-BS' that is etched. This appears as  'I2-ⅠS-ZTAS-I-BS' where 'I' is the number '1'.
In side A, var.4, the last digit is a very faint imprint numeral that is hardly readable.
In side A, var.9, the last two digits are a very faint imprint of a 2-digit numeral that is hardly readable.
In side B, var.5, the stamped section comes as 12 ZTAS-1B-3U-1- 3⇀ '2' [Inverted and a reversed '1'

A. Relax (U.S. Mix) 7:20
B1. Ferry Cross The Mersey 4:03
B2. Relax 4:20

Barcode and Other Identifiers:

Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 1 - 4 4
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 1 - 3 1 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 5 - 4 4
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 2 - 54 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 3 ⇀13
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 1 - 57 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 4
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 3 47 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 2 ⇀ 42
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 3 ⇀ 2 1 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 2 ⇀ 1
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 1 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 1 ⇀
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 1 ⇀ 1 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 2 ⇀ 45
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 3 ⇀ 34 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 2 ⇀
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS 1 B - 3U - 1 - 3 ⇀ 25 STERLING
Matrix / Runout 12 ZTAS 1 A - 4U - 1 - 7 ⇀ 1 1
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS - 1 B - 3U - 1 - 4 ⇀ 54 STERLING
Matrix / Runout 12 ZTAS 1A-4U-1-5⇀15
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS 1B-3U-1-3⇀37 STERLING
Matrix / Runout 12 ZTAS 1 A 4U-1-1⇀22
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS 1B-3U-1-3⇀48 STERLING
Matrix / Runout 12 ZTAS 1A-4U-1-3⇀10
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS 1B-3U-1-2-1 STERLING
Matrix / Runout 12 ZTAS 1A-4U-1-2
Matrix / Runout 12-IS-ZTAS-1-BS 12 ZTAS 1B-3U-1-2-10 STERLING

Phonographic Copyright (p) Zang Tumb Tuum
Copyright (c) Zang Tumb Tuum
Published By Perfect Songs
Published By Dick James Music
Lacquer Cut At Sterling Sound
Manufactured By Island
Distributed By Island
Pressed By EMI Records