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: Home Life Comfort Sleep 6-Inch Mattress - Full. Home & Kitchen. Furniture. LIFE Home.
2nd: Dream Factory Purple Princess Hearts And Crowns Girls Comforter Set, Multi, Full. Home & Kitchen. Bedding. dream FACTORY.
3rd: TopYart 10M/33ft White LED String Lights 100 LEDs Indoor Decorative Lights for Wedding Xmas Party - Control up to 8 Sparking Modes. Home & Kitchen...

Options:
A: Professional Grade Silicone Spatula Set - (3 pack) - Heat-Resistant Non Stick Flexible Rubber Spatula Set with One Piece Seamless Design by Silchef. Home &...
B: Belkin PureAV AV48001 HDTV/VHF/ UHF/FM Amplified Indoor Antenna. Electronics. Accessories & Supplies. Belkin.
C: Bear Motion Premium Folio Case with Detachable Bluetooth Keyboard for Kindle Fire HDX 7 (Kindle Fire HDX 7", Black). Electronics. Computers & Accessories. Bear Motion.
D: Poetic KeyBook Bluetooth Keyboard Case for iPad Mini /iPad Mini 2 with Retina Display White (With Auto Sleep/Wake Function) (3 Year Warranty from Poetic). Electronics...
E: iScope iPhone 4 Adapter. Sports & Outdoors. Sports & Fitness. iScope.
F: LaCie Rugged Triple 1TB USB 3.0 / Firewire 800 Portable Hard Drive + 1mo Adobe CC All Apps (LAC301984). Electronics. Computers & Accessories. LaCie.
G: Comfort Glow ELCG125 Electric Glowing Logs with Crackling Sound Effect. Home & Kitchen. Heating, Cooling & Air Quality. Comfort Glow.
H: Under Armour Women's Tech Shorts. Sports & Outdoors. Sports & Fitness. Under Armour.
I: SPEG UV-Pro Cycling Head Cooling Helmet Liner, SPF30.  Live2Pedal.
J: Douk-DD815PM-BRK Folder black. Sports & Outdoors. Sports & Fitness. Douk.
K: rooCASE Dual-View Multi Angle Leather Folio Case Cover for Barnes and Noble Nook Tablet / Nook color Nook Color eBook Reader-Black. Electronics. Computers & Accessories...
L: Ogio Unisex Circuit Backpack. Electronics. Computers & Accessories. OGIO.
M: Dell Inspiron Mini iM1012-571OBK 10.1-Inch Netbook (Obsidian Black). Electronics. Computers & Accessories. Dell.
N: Altec Lansing VS2320 2-Piece music & gaming speaker system (black & silver). Electronics. Computers & Accessories. Altec Lansing.
O: KastKing SuperPower Blue Braided Fishing Line 500M(547 Yard)-50LB. Sports & Outdoors. Sports & Fitness. KastKing.
P: Oxford Daily Bowl - 20 OZ- Microwavable for Cereal, Soup and ice cream- Set of 6, Assorted Colors. Home & Kitchen. Kitchen & Dining. Oxford.
Q: Apple iMac MC814LL/A 27-Inch Desktop PC (3.1GHz Intel Core i5 Processor, 4GB RAM, 1TB HDD) (OLD VERSION) (Discontinued by Manufacturer). Electronics. Computers & Accessories. Apple.
R: KidKraft Princess Castle Dollhouse with Furniture. Home & Kitchen. Furniture. KidKraft.
S: 1 INCH TACTICAL FLASHLIGHT LASER RING MOUNT . Sports & Outdoors. Sports & Fitness. AIM Sports.
T: Buzz Brush 3-Pack Cleaning Kit for Keyboards and LCD Screens - White (101BB-03). Electronics. Computers & Accessories. Buzz Brush.


assistant
Answer: R