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: Given the products the user has purchased in history, rank the items in the listed options and output the item that the user is most likely to purchase next. Answer from one of the options.

Input:
Purchase History:
1st: Cooling Scarf/Cooling Headband - Reusable - Stays Cool for Hours - Cooling Bandana for Men & Women - Unisex. Sports & Outdoors. Sports & Fitness...
2nd: Bandanna ICE Scarf Summer Camping Cool Accessories Wear. Sports & Outdoors. Sports & Fitness. Elixir Golf.
3rd: Plano 3448 Series Stowaway Boxes. Sports & Outdoors. Sports & Fitness. Plano.

Options:
A: Under Armour Men's Speed Stride 7" Shorts. Sports & Outdoors. Sports & Fitness. Under Armour.
B: Set of 6 Jumbo Amber LED Flameless Tea Lights with Color Changing Option (Batteries Included). Home & Kitchen. Home Dcor.
C: Mikasa Antique White 40-Piece Dinnerware Set, Service for 8. Home & Kitchen. Kitchen & Dining. Mikasa.
D: Homder Automatic Brushed Stainless Steel Soap Dispenser. Home & Kitchen. Bath. Homder.
E: Kenmore 1.6 cu. ft. Countertop Microwave Black 73169. Home & Kitchen. Kitchen & Dining. Kenmore.
F: LimoStudio Photo Video Studio Adjustable Muslin Background Backdrop Support System Stand & Cross Bar, AGG1111. Electronics. Camera & Photo. LimoStudio.
G: Dell Inspiron 5000 Series Laptop - i5559-3349SLV (15.6” HD, Intel Core i5-6200U 2.30GHz, 8GB RAM, 128GB SSD, DVD-RW, Windows 10 Home 64). Electronics. Computers &...
H: Chrome Kitchen Organizer with dish / paper towel rack. Home & Kitchen. Kitchen & Dining. Trademark Global.
I: Plantronics ear cushion - 2 PACK ( 67712-01 ). Electronics. Accessories & Supplies. Plantronics.
J: Bay Valley Parts 6-Cell Li-Polymer 11.1V 5800mAh New Replacement Laptop Battery for HP:538692-541, 580686-001, HSTNN-E02C, HSTNN-E03C, HSTNN-OB0L, HSTNN-UB0L, VG586AA,538692-351 HP:Pavilion dm3,Pavilion dm3-1000, Pavilion dm3-1001AU, Pavilion...
K: Vastar 8pcs Multi-color Replacement Fitbit Flex Bands with 8pcs Clasps and 8pcs Silicon Fastener Rings for Fitbit Flex Wireless Activity Bracelet Sport Wristband. Electronics. Wearable...
L: Easy Greasy Strain & Save Kitchen Colander. Home & Kitchen. Kitchen & Dining. Easy Greasy.
M: Pantograph. Home & Kitchen. Kitchen & Dining. Rockler.
N: Giro Foray MIPS Road Cycling Helmet Highlight Yellow Medium (55-59 cm). Sports & Outdoors. Outdoor Recreation. Giro.
O: Oneida Nocha, Dinner Forks, Set of 6. Home & Kitchen. Kitchen & Dining. Oneida.
P: Bose® Wireless Computer Speaker. Electronics. Computers & Accessories. Bose.
Q: CE Smith Drop-in Swivel. Sports & Outdoors. Sports & Fitness. CE Smith.
R: SF 2 in 1 Fly Fishing Angler Accessories Knot Tying Tool Knot Tyer. Sports & Outdoors. Sports & Fitness. SF.
S: DWK Inspirational Cute Praying Frog On Rock Statue Novelty Collectible Frog Figurine. Home & Kitchen. Home Dcor. DWK.
T: Winestakz Wine Storage System - Refrigerator or Bench Storage & Protection for Red Wine & White Wines. Securely Stack up to 15 Full Size Bottles...


assistant
Answer: R