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: Plano 5 Gallon Bucket Topper and Organizer. Sports & Outdoors. Sports & Fitness. Plano.
2nd: Osprey Stratos 36 Backpack. Sports & Outdoors. Outdoor Recreation. Osprey.
3rd: STIGA Classic Table Tennis Set. Sports & Outdoors. Sports & Fitness. STIGA.

Options:
A: CitriSqueeze (Yellow) - Modern manual citrus hand juicer for fresh, simple and great tasting juice every-time! Color: Yellow Model: (Home & Kitchen). Home & Kitchen...
B: Cambridge Jessica Flatware Set 20 Pc. Jessica Pattern Mirror Finish Boxed. Home & Kitchen. Kitchen & Dining. Cambridge Silversmiths.
C: LandAirSea Magnetic Wireless Pocket-Sized GPS Tracking Key Pro System. Electronics. GPS, Finders & Accessories. LandAirSea.
D: BakeWarePlus 12 Cups Silicone Muffin Pan and Cupcake Pan Maker Non - Stick Red. Home & Kitchen. Kitchen & Dining. BakeWarePlus.
E: Oduo Lync-it 4.0 USB Bluetooth Adapter - Compatible with Windows 7, Windows 8, Windows Vista. Electronics. Computers & Accessories. Oduo.
F: Thule Roof Mount Bike Rack Wheel Straps.  Thule.
G: Maxtor DiamondMax 16 4R160L0 160GB 5400RPM 2MB cache EIDE ATA/133 3.5" Desktop Hard Drive - w/ 1 year Warranty. Electronics. Computers & Accessories. Maxtor.
H: Daphne's Weimaraner Headcover. Sports & Outdoors. Sports & Fitness. Daphne's Headcovers.
I: Kikkerland Paper Straw, Chevron, Gray, Box of 144. Home & Kitchen. Kitchen & Dining. Kikkerland.
J: SCALARIDER Q2 PRO MULTI. Electronics. GPS, Finders & Accessories. scala rider.
K: Yonger Clear Makeup Bracket 24 Lattices Lipstick Stand Transparent Cosmetic Display Stand for Lipstick, Eyebrow Brush, Mascara, Cosmetic Bottle, etc. Home & Kitchen. Bath. Yonger.
L: Incline Fit High Density Anti-Slip Exercise Yoga Mat. Sports & Outdoors. Sports & Fitness. Incline Fit.
M: Youngerbaby 24pcs Amber Yellow Flickering Timing Tea Light Candles with Timer (6 Hrs on 18 Hrs Off) Flameless LED Tealights Wax Dripped Battery Operated Candles...
N: EZ-DUZ-IT Deluxe Can Opener with Black Grips. Home & Kitchen. Kitchen & Dining. EZ-DUZ-IT.
O: QNAP TS-469-PRO 4-Bay NAS, SATA 6Gbps, USB 3.0. Electronics. Computers & Accessories. QNAP.
P: Wenzel Vortex 6 Tent. Sports & Outdoors. Outdoor Recreation. Wenzel.
Q: Fireplace Damper Flue Clamp, Damper Stop, or Safety Lock. Home & Kitchen. Heating, Cooling & Air Quality. GHP.
R: CRKT Triumph N.E.C.K. Fixed Blade Knife with Sheath: Compact Emergency Knife, Black Recurved Dual-Grind Blade, Skeletonized Handle,  Survival Paracord Handle,  Gear Compatible Sheath...
S: Talon Grip for Glock 19,23,25,32,38 (Gen4 Med Backstrap) Black Rubber - 111R W/ Free Sticker - Johnson Enterprises, LLC. Sports & Outdoors. Sports & Fitness...
T: Weston Apple Peeler. Home & Kitchen. Kitchen & Dining. Weston.


assistant
Answer: R