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 the items in options and predict the user's next purchase from the listed options by analyzing her historical purchases.

Input:
Purchase History:
1st: CaseCrown Bold Standby Case (Blue) for 2012 Amazon Kindle Fire HD 7 Inch (Built-in magnet for sleep / wake feature). Electronics. Computers & Accessories. CaseCrown.
2nd: Targus Bluetooth Wireless Keyboard for iPad 2, iPad 3 and iPad 4th Generation, iPad mini, AKB32US (Black). Electronics. Computers & Accessories. Targus.
3rd: VSTN®Samsung Galaxy Note 10.1 2014 Edition & Tab pro 10.1 Ultra-Thin Multi-angle Stand Slim Smart Cover Case, not fit the Note 10.1 N8000 N8010 etc...
4th: Cybertech MHL Micro USB to HDMI HDTV Adapter for Samsung Galaxy Note 10.1 (2014 Edition) - 2 Meters Extra Long Cable (Charge Your Phone While...

Options:
A: GENUINE SHARK DUST BRUSH FOR MODELS NV500, NV501. Home & Kitchen. Vacuums & Floor Care. Shark.
B: SAMZHE Under Bed Bondage Restraints Sets with Soft Eye Mask Adjustable Wrist HandCuffs and Ankle Cuffs for Female-Purple. Electronics. Accessories & Supplies. SAMZHE.
C: DreamFoam Bedding 2-Inch Memory Foam Topper, 4-Pound, King. Home & Kitchen. Bedding. Dreamfoam Bedding.
D: Brita Large 10 Cup Water Filter Pitcher with 1 Standard Filter, BPA Free – Grand, White. Home & Kitchen. Kitchen & Dining. Brita.
E: Update International (ES-AL) 11-Slice Aluminum Egg Slicer. Home & Kitchen. Kitchen & Dining. Update International.
F: Trangia Lower Windshield. Sports & Outdoors. Outdoor Recreation. Trangia.
G: Aloe Vera Bamboo Memory Foam Pillow - Hypoallergenic Washable Pillow (2, Queen). Home & Kitchen. Bedding. Aslan Trade.
H: 3 Spray Head Solar Pump Garden Fountain Pond Water Feature / Solar Powered Fountain Pump Kit for Fountains, Waterfalls and Water Displays / a Integrated...
I: Newmen F356 Wireless Mouse Cordless Optical CPI 1000 with Nano Receiver 2.4GHz,Blue. Electronics. Computers & Accessories. Newmen.
J: Smitty Officials Football Penalty Flag with Center Weight Ball, Black/Gold. Sports & Outdoors. Sports & Fitness. Smittybilt.
K: El Borracho Green Skeleton Holding Liqour Bottle. Home & Kitchen. Home Dcor. YTC.
L: Polk Audio 265-Ls White Rectangular High Performance In-Wall Speaker. Electronics. Home Audio. Polk Audio.
M: Tripp Lite SCSI Double Shielded Cable (VHDCI68M/HD50M) 6-ft.(S442-006). Electronics. Computers & Accessories. Tripp Lite.
N: BLACK+DECKER 2-Slice Toaster, Square, Black with Chrome Accents, TR1256B. Home & Kitchen. Kitchen & Dining. Black & Decker.
O: Honey-Can-Do TRS-05085 Square Mesh Trash Basket, 10.5 x 10.5 x 11.7, Pink. Home & Kitchen. Storage & Organization. Honey-Can-Do.
P: Goose Feather and Down Bed pillows, Set of 2 (Standard ). Home & Kitchen. Bedding. East Coast Bedding.
Q: Hermitshell Travel Hard EVA Protective Case Fits DYMO LabelManager 160 Hand-Held Label Maker 1790415. Electronics. Accessories & Supplies. Hermitshell.
R: OREI HD-102 1x2 1 Port HDMI Powered Splitter Ver 1.3 Certified for Full HD 1080P & 3D Support (One Input To Two Outputs). Electronics. Accessories...
S: KINGSO 5pcs Square Cake Biscuit Cookie Fondant Cutter Mould Mold Sugarcraft Decorative. Home & Kitchen. Kitchen & Dining. BigbigMall.
T: Elegant Comfort Quilted Leaf Design Reversible Furniture Protector for Pet Dog Children Kids -2 Ties to Stop Slipping Off Treatment Microfiber As Soft as Egyptian...


assistant
Answer: R