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: ACCUSPLIT Pro Survivor - A601X Stopwatch, Clock, Extra Large Display. Sports & Outdoors. Sports & Fitness. ACCUSPLIT.
2nd: ACCUSPLIT Pro Survivor - A601X Stopwatch, Clock, Extra Large Display. Sports & Outdoors. Sports & Fitness. ACCUSPLIT.

Options:
A: SODIAL(R) 3 Pack of Black Blue Pink Stylus Universal Touch Screen Pen for Ipad 2 Ipod Iphone 4,4S,3g ,3gs, Kindle Fire,Motorola Xoom, Samsung Galaxy Tab...
B: Antec TPQ-1000 TruePower Quattro 1000W Power Supply. Electronics. Computers & Accessories. Antec.
C: Slumberjack Latitude -20 Degree Synthetic Sleeping Bag. Sports & Outdoors. Outdoor Recreation. Slumberjack.
D: TOPSKY iPad Air Case, iPad A1474/A1475/A1476 Kids Proof Case, Heavy Duty Shockproof Rugged Armor Defender Kickstand Protective Cover Case for iPad Air Grey Blue. Electronics...
E: 2XU Men's Elite Compression Tights. Sports & Outdoors. Sports & Fitness.
F: Old World Christmas Ornaments: Stingray Glass Blown Ornaments for Christmas Tree. Home & Kitchen. Home Dcor. Old World Christmas.
G: SENNHEISER MX55V STREET SERIES TWIST-TO-FIT EARBUDS WITH BASSWIND™ SYSTEM. Electronics. Headphones. Sennheiser.
H: Home Essentials Terra Set Of 3 Candle Holders. Home & Kitchen. Home Dcor.
I: Knife Sheath Kit 4105. Sports & Outdoors. Sports & Fitness. Tandy Leather.
J: Keurig® 2.0 K450 Coffee Brewing System - Sandy Pearl. Home & Kitchen. Kitchen & Dining. Keurig.
K: Update International (KP-05) 9" German Steel Offset Bread Knife. Home & Kitchen. Kitchen & Dining. Update International.
L: 8milelake Upgraded Fixed-angle Knife Sharpener Kit Full Metal Professional 4 Sharpening Stones. Home & Kitchen. Kitchen & Dining. 8MILELAKE.
M: HIC Brands that Cook Stainless Steel and Red Silicone Locking Tongs, 9-Inch. Home & Kitchen. Kitchen & Dining. HIC Harold Import Co.
N: Nickelodeon Hedstrom Teenage Mutant Ninja Turtles #3 Jr. Soccer Ball, 53-63824AZ. Sports & Outdoors. Sports & Fitness. Nickelodeon.
O: Brybelly 9 Deck Rotating/Revolving Card Tray. Sports & Outdoors. Sports & Fitness. Brybelly.
P: Allen Field Dressing Gloves Set, Wrist & Shoulder Length.
Q: Epica Digital Emergency Solar Hand Crank AM/FM/NOAA Radio, Flashlight, Smartphone Charger with NOAA Certified Weather Alert & Cable-ONE CABLE DOES ALL. Electronics. Portable Audio &...
R: Jef World of Golf Gifts and Gallery, Inc. Practice Golf Balls (Orange, Set of 12). Sports & Outdoors. Sports & Fitness. JEF WORLD OF GOLF.
S: Storage Army [Pack of 5 XXLarge Storage Bags Sealed Compressed Vacuum Bag Save Storage Space Home Organizer & Travel Storage Saver Bags protection against Water...
T: HP GT-50L Sata New SATA Rewriteable CD 8X DVD +/- RW Read/write CD DVD ROM Drive burner for Laptop Notebooks. Electronics. Computers & Accessories. HP.


assistant
Answer: R