Task: Sequential_Recommendation

system
You are a helpful assistant. The assistant first thinks about the reasoning process in the mind by using Belief-Desire-Intention (BDI) framework and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively. 
Below is an instruction that describes a task. After thinking, when you finally reach a conclusion based on the customer's intention, desire and belief, clearly state the BDI thinking process within <think> </think> and then the answer within <answer> </answer> tags.


user 
Instruction: Rank items in listed options based on the user's purchase history to determine the item that the user is most likely to purchase next. Output the item with the highest likelihood of being the next purchase.

Input:
Purchase History:
1st: Creative Nomad Jukebox Zen Xtra 30 GB MP3 Player (Discontinued by Manufacturer). Electronics. Portable Audio & Video. Creative.
2nd: Coolmax HD-389-U2 3.5Inch Sata External Encl with USB2.0 Connection. Electronics. Computers & Accessories. Coolmax.
3rd: Logitech Wireless Anywhere Mouse MX for PC and Mac. Electronics. Computers & Accessories. Logitech.
4th: Poetic SLIMLINE Portfolio for Apple iPad Mini Tablet Black (Fit Apple iPad Mini and iPad Mini 2 with Retina Display 2nd Gen., Not Fit Apple...
5th: SONY DR-EX12IP In-Ear Stereo Headphones with Mic and Remote (Black). Electronics. Headphones. Sony.
6th: Onkyo TX-NR525 5.2-Channel Network Audio/Video Receiver (Black). Electronics. Home Audio. Onkyo.

Options:
A: Speedo Adult Adventure Mask Snorkel Fin Set. Sports & Outdoors. Outdoor Recreation. Speedo.
B: Animal Planet Travel Pillow for Kids, Monkey. Home & Kitchen. Bedding. Animal Planet.
C: FMM Alphabet & Number Block Set - Upper Case. Home & Kitchen. Kitchen & Dining. FMM Sugarcraft Tappit.
D: 2150 Series Latching Cable Raceway - 2" x 1.5" Channel Size - 2 Sticks - 5FT Long (10FT Total) - Color: White. Electronics. Accessories &...
E: Microfiber Sport and Travel Towel - 2 Pack (20x10 Included) - Soft and Lightweight, Super Absorbent and Quick Drying - Great for Camping, Beach, Gym,...
F: Quick Release Plate for the RC2 Rapid Connect Adapter (SET OF 2) for MANFROTTO 804RC2. Electronics. Camera & Photo. DC & Co.
G: EVALESS Womens Color Block Bandage Cut Two Piece Swimsuit Swimwear Bikini Set. Sports & Outdoors. Sports & Fitness. EVALESS.
H: LE Lampux 12V Flexible RGB LED Strip Lights, LED Tape, Multi-colors, 150 Units 5050 LEDs, Non-waterproof, Light Strips, Pack of 16.4ft/5m. Home & Kitchen. Seasonal...
I: LaCie 250 GB USB 2.0 External Hard Drive (300728U). Electronics. Computers & Accessories. LaCie.
J: Thermos Star Wars Clone Wars Dual Compartment Lunch Kit. Home & Kitchen. Kitchen & Dining. Thermos.
K: RIVBOS Rubber Bendable Cat Cartoon Style Polarized Sunglasses for Children Kids Age 2-10 Yr (Pink). Sports & Outdoors. Fan Shop. RIVBOS.
L: Calico Designs Futura End Table in Silver with Clear Glass 50608. Home & Kitchen. Furniture. Calico Designs.
M: Easy-Grip(TM) Natural Rubber Jar Opener - Set of 4. Home & Kitchen. Kitchen & Dining. Dura-Grip.
N: Keys-U-See Wireless Large Print Keyboard and Wireless Mouse Bundle Set (Keys U See). Electronics. Computers & Accessories. Keys-U-See.
O: Sirius Satellite Receiver Vehicle Package. Electronics. Car & Vehicle Electronics. Xact.
P: AXESS PB2705 Portable Boombox with AM/FM Radio, CD/MP3 Player, USB/SD, Cassette Recorder and Headphone Jack (Black). Electronics. Portable Audio & Video. Axess.
Q: Klear Cut [3 Pack] – Screen Protector for Lenovo Yoga 2 Pro – Lifetime Replacement Warranty - Anti-Bubble & Anti-Fingerprint High Definition (HD) Clear Premium...
R: Plugable Ultra-Portable Bluetooth Folding Keyboard for Android, iOS, Windows, OS X with Included $12 Protective Case/Tablet Stand. Electronics. Computers & Accessories. Plugable.
S: adidas Boys Youth cushioned 6-Pack Quarter sock. Sports & Outdoors. Sports & Fitness. adidas.
T: Tagua Gunleather Right Handed S&W SHIELD Inside Pants Gun Holster. Sports & Outdoors. Sports & Fitness. Tagua Gunleather.


assistant
Answer: R