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: Based on the user's historical purchases, rank the items in options and predict the next product of the user's interest from the provided options.

Input:
Purchase History:
1st: Frigidaire FRA065AT7 6000-BTU Mini Compact Window Air Conditioner. Home & Kitchen. Heating, Cooling & Air Quality. Frigidaire.
2nd: Milliard 2" Egg Crate Ventilated Memory Foam Mattress Topper Twin 73"x37"x2”. Home & Kitchen. Bedding. Milliard.
3rd: Dream Factory Safari Girl Leopard Ultra Soft Microfiber Comforter Set, Pink, Twin. Home & Kitchen. Bedding. dream FACTORY.
4th: Dream Factory Butterfly Party Ultra Soft Microfiber Girls Comforter Set, Pink, Twin. Home & Kitchen. Bedding. dream FACTORY.
5th: Rajlinen #1 Bed Sheet Set 100% Egyptian Cotton 800 Thread-Count Wrinkle, Fade, Stain Resistant - 4 Piece Set 16" Drop (Dark Grey Solid, Queen). Home...

Options:
A: Signature Sleep RenewFoam Infused Memory Foam and Independently Encased Coil Mattress, 10-Inch. Home & Kitchen. Furniture. Signature Sleep.
B: Pillowflex Synthetic Down Pillow Form Insert, 18 by 18-Inch (2 Pack). Home & Kitchen. Bedding. Pillowflex.
C: Winsome Wood 92303 Boris Bench Cushion Seat, Espresso. Home & Kitchen. Furniture. Winsome Wood.
D: WoodWick Brownstone Medium Rectangle. Home & Kitchen. Home Dcor. WoodWick.
E: WoCase Replacement Accessory Fitbit Flex Wristband Wrist Band Bracelet (Large/Small) with Clasp for Fitbit Flex Activity and Sleep Tracker (One Band+ One Clasp). Electronics. Wearable...
F: Cuisinart DCG-12BCFR Grind Central Coffee Grinder (Certified Refurbished). Home & Kitchen. Kitchen & Dining. Cuisinart.
G: Harman Kardon Onyx Studio 3 (Black). Electronics. Portable Audio & Video. Harman Kardon.
H: Premium Glass Spray Bottles| 2 Oz| Pack Of 6 Spray Bottles W/ Fine Mist Atomizer & x1 Eye Dropper Included| Ideal For Essential & Fragrance...
I: Toshiba Qosmio X875-Q7190 17.3-Inch Laptop (Black Widow Styling in Diamond-Textured Aluminum). Electronics. Computers & Accessories. Toshiba.
J: Goldwood Sound GW-8024 Rubber Surround 8" Woofer 190 Watts 4ohm Replacement Speaker. Electronics. Car & Vehicle Electronics. Goldwood Sound, Inc.
K: Hallmark Keepsake Ornament: Always Remembered. Home & Kitchen. Home Dcor. Hallmark.
L: Crosley Furniture Culinary Prep Rolling Kitchen Cart - Natural/Red. Home & Kitchen. Furniture. Crosley Furniture.
M: Mercury Black Max 3 Blade Prop Propeller 14.25 X 21. Sports & Outdoors. Sports & Fitness. Mercury Marine / Mercruiser.
N: Seagate Expansion 3TB Portable External Hard Drive USB 3.0 (STEA3000400). Electronics. Computers & Accessories. Seagate.
O: Proctor-Silex 33042 4-Quart Slow Cooker. Home & Kitchen. Kitchen & Dining. Proctor Silex.
P: LG VX5400 Cell Phone Travel Charger / AC Adaptor / Battery Charger / Wall Charger. Electronics. Accessories & Supplies. LG.
Q: Creative Bath Products GBR11BLK Bed and Furniture Risers (4-Count), Black. Home & Kitchen. Bedding. Creative Bath.
R: Okuma Classic Pro XP Level Wind Graphite Trolling Reel. Sports & Outdoors. Sports & Fitness. OKUMA.
S: HP ProLiant DL380 G6 2U 64-bit Server with 2xQuad-Core E5540 Xeon 2.53GHz + 16GB RAM + 8x146GB 10K SAS HDD, RAID, NO OS. Electronics. Computers...
T: Disney Frozen Olaf EVA Lamp. Home & Kitchen. Home Dcor. Disney.


assistant
Answer: O