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: The user's purchase history implies her preferences. Rank the items in the options based on the user's preferences. Output the item that the user is most likely to purchase next from the options.

Input:
Purchase History:
1st: SigTac Paddle Retention Holster, P250 Full-Size, All Calibers, Black. Sports & Outdoors. Sports & Fitness. SigTac.
2nd: Holster for Rossi 2" Revolver 38 & 357. Sports & Outdoors. Sports & Fitness. Federal.
3rd: 3M Peltor Combat Arms Earplugs. Sports & Outdoors. Sports & Fitness. Peltor.
4th: Allen Youth Fiberglass Arrows with Points Installed (Pack of 3).  Allen Company.
5th: HD Night Vision Wraparounds Wrap Around Glasses.  TVTime Direct.
6th: UTG 3-pack .45 Cal. Bore Brushes. Sports & Outdoors. Sports & Fitness. UTG.
7th: McFadden Machine Ultimate Cliploader UCL22 Ruger Pistol 50 Round Magazine Speed Loader. Sports & Outdoors. Sports & Fitness. McFadden Machine.

Options:
A: Bissell 3576 CleanView II Plus Upright Bagless Vacuum. Home & Kitchen. Vacuums & Floor Care. Bissell.
B: BenQ WXGA DLP Short Throw Projector (MW632ST), 3200 Lumens, WXGA 1280x800, HDMI, 10W Speaker, Keystone, 87”@4.5ft, 1.2X Zoom. Electronics. Video Projectors. BenQ.
C: Funny Guy Mugs Look Me In The Beard Collapsible Neoprene Can Coolie - Beard on Bottom. Home & Kitchen. Kitchen & Dining. Funny Guy Mugs.
D: Gaiam Athletic Yoga Series duraMAT Xtra-Large Mat. Sports & Outdoors. Sports & Fitness. Gaiam.
E: ARTLAND Modern Landscape Beige Buddha Print on Canvas Wall Art Decor Frame. Home & Kitchen. Wall Art. ARTLAND.
F: Premium Christmas Foam Lined Padded Wreath Keeper Bag with Direct-Suspend Removable Handle Size: 9" H x 60" W x 60" D. Home & Kitchen. Storage...
G: Sony PRS700BC PRS-700BC Digital Book Reader. Electronics. eBook Readers & Accessories. Sony.
H: Lekue Individual Oatmeal Maker, Red. Home & Kitchen. Kitchen & Dining. Lekue.
I: ShopOnNet RT430564BR - Rectangular Rattan/Wicker Storage Basket or Storage Bin in Brown. Home & Kitchen. Storage & Organization. ShopOnNet.
J: Coghlan's 550-Pound Nylon Paracord, 50-Feet. Sports & Outdoors. Sports & Fitness. Coghlan's.
K: Arthur Court Elephant Spoon Rest. Home & Kitchen. Kitchen & Dining. Arthur Court.
L: Ubiquiti UniFi Switch - 24 Ports Managed (US-24-250W). Electronics. Computers & Accessories. Ubiquiti Networks.
M: VideoSecu LCD DLP Projector Vaulted Ceiling Mount Bracket with Adjustable Extension Pole to 26.7" - Black PJ2B 1C9. Electronics. Accessories & Supplies. VideoSecu.
N: PC-Armament Comp, Aluminum Trigger Guard, Flat Black. Sports & Outdoors. Sports & Fitness. PC-armament.
O: Monoprice 109980 Enhanced Bass Hi-Fi Earphones with Built-In Microphone and Inline Controls for iPhone, iPod and iPad - Retail Packaging. Electronics. Headphones. Monoprice.
P: MLB New York Yankees Men's Yankees Basic T-Shirt. Sports & Outdoors. Fan Shop. VF LSG.
Q: Tupperware Large Hourglass Salt & Pepper Shakers Clear With Watermelon Pink Tops. Home & Kitchen. Kitchen & Dining. Tupperware.
R: EISEN Supply Co. Pistol Range Bag and Rug with 5 Magazine Holder. Sports & Outdoors. Sports & Fitness. EISEN Supply Co.
S: 101AV 1080P True Full-HD Security Dome Camera 2.8-12mm Variable Focus Lens 2.4Megapixel STARVIS Image Sensor IR In/Outdoor Camera works w/TVI, AHD, CVI, standard Analog system...
T: New Era NFL 2016 Training Camp 39THIRTY Stretch Fit Cap. Sports & Outdoors. Fan Shop. New Era.


assistant
Answer: R