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: WD  My Passport Essential 250 GB USB 2.0 Portable External Hard Drive (Midnight Black). Electronics. Computers & Accessories. Western Digital.
2nd: Laptop/Notebook AC Adapter/Battery Charger Power Supply Cord for Gateway m-6333 T-1600 M320 M270 MT3707 MX3225 M-6307 M-6308 MT6730 MT6916 MT6917b T-1622 T-1625 M-6816 M-6816M M-6750...

Options:
A: Intel Boxed Core i3-6320 Processor FC-LGA14C 3.9 3 LGA 1151 BX80662I36320. Electronics. Computers & Accessories. Intel.
B: Bormioli Rocco Swing Bottle, 33-3/4-Ounce, Lavender. Home & Kitchen. Kitchen & Dining. Bormioli Rocco.
C: Under Armour Men's Launch Split Run Shorts. Sports & Outdoors. Sports & Fitness. Under Armour.
D: CamelBak Unisex Pure Flow Replacement Tube. Sports & Outdoors. Outdoor Recreation. CamelBak.
E: TecTecTec Action Cam Waterproof 4K XPRO2+ WiFi Waterproof Sport Cam - Blue. Electronics. Camera & Photo. TecTecTec.
F: Under Armour Men's UA Quarter Shorts, 2 Pack. Sports & Outdoors. Sports & Fitness. Under Armour.
G: Nikon COOLPIX P530 16.1 MP CMOS Digital Camera with 42x Zoom and Built in Flash (Black) + EN-EL5 Spare Battery + 32GB Deluxe Accessory Bundle...
H: Justin Bieber Follow your dreams and never say never. cute music wall art wall sayings quotes. Home & Kitchen. Wall Art.
I: Panasonic SC-EN5 Executive Microsystem (Discontinued by Manufacturer). Electronics. Home Audio. Panasonic.
J: Yubi Power 6 Outlet Power Plug Surge Protector Wall Tap with 2 USB Ports 2.1A 300 Joules - White - ETL Listed - 2 Pack...
K: LA robe Club MBP15 Black/Safran. Electronics. Computers & Accessories. be.ez.
L: Quicksilver Flo TORQ II Kit for Mercury 135-300 HP, Mercruiser Alpha/Bravo One Drives. Sports & Outdoors. Sports & Fitness. QuickSilver.
M: Jim Shore Heartwood Creek Pint-Size Snowman Wrapped in Lights Stone Resin Figurine, 5”. Home & Kitchen. Home Dcor. Jim Shore for Enesco.
N: Elite Tactical US Marines M-1022BK Fixed Blade Knife, 8-Inch, Black. Sports & Outdoors. Sports & Fitness. Elite Tactical.
O: Schott Zwiesel Tritan Crystal Glass Congresso Stemware Collection Champagne Flute, 8-Ounce, Set of 6. Home & Kitchen. Kitchen & Dining. Schott Zwiesel.
P: Wild Game Innovations VU50 Trail Pad Handheld Card Viewer. Sports & Outdoors. Sports & Fitness. Wild Game Innovations.
Q: SONY PHA-2 Headphone Amplifier. Electronics. Accessories & Supplies. Sony.
R: Old World Christmas Deli Sandwich Glass Blown Ornament. Home & Kitchen. Home Dcor. Old World Christmas.
S: MOTOROLA OEM BQ50 Battery (Bulk Packaging). Electronics. Camera & Photo. Motorola.
T: Furinno 99603DC/BK Turn-N-Tube 3-Tier Entertainment Center, Dark Cherry/Black. Home & Kitchen. Furniture. Furinno.


assistant
Answer: S