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: Star Night Light, Moon Stars Projector, Rotating 9 Color Options Romantic Night Lighting Lamp, USB Cable/Batteries Powered for Nursery, Bedroom Baby Night Lights for Kids...
2nd: Personalized Letter C Metal Wall Wine Cork Holder. Home & Kitchen. Kitchen & Dining. LDI.

Options:
A: Kastar iPad2 6500mah Li-ion Battery Replacement for Apple Ipad 2 (the 2nd Generation iPad, NOT for 3rd or 4th Generation). Electronics. Computers & Accessories. FDL.
B: Matias FK418BTS Wireless Aluminum Keyboard for Mac, Windows, Android Devices (Silver). Electronics. Computers & Accessories. Matias.
C: NFL San Francisco 49Ers Men's Team Quarter Socks. Sports & Outdoors. Fan Shop. For Bare Feet.
D: Southern Homewares Metal Banana Rack Hanger, Bronze. Home & Kitchen. Kitchen & Dining. Southern Homewares.
E: Pike Street 410-Thread Count Supima Cotton European White Goose Down Standard Pillow. Home & Kitchen. Kitchen & Dining.
F: Department 56 Disney Village Christmas Carols in Front of Tree Accessory Figurine. Home & Kitchen. Home Dcor. Department 56.
G: Foscam FI8910W White 2-pack Pan & Tilt Wireless IP Camera with 9dbi Antennas. Electronics. Camera & Photo. Foscam.
H: Pack of 500 Red Tinsel Icicle Christmas Garland Strands 18". Home & Kitchen. Seasonal Dcor. CC Christmas Decor.
I: Famous City Landmark Pattern Fabric Shower Curtain, 72" By 72" (Paris). Home & Kitchen. Bath. Textile Balloon.
J: Waxations 100-Percent Hand Crafted Spa Scented Valentines or Romantic Love Candle, 9-Inch, Pink. Home & Kitchen. Home Dcor. Waxations.
K: Sony MDRZX110AP ZX Series Extra Bass Smartphone Headset with Mic (White). Electronics. Headphones. Sony.
L: Sony D-NE710 ATRAC3/MP3 CD Walkman Portable Disc Player. Electronics. Portable Audio & Video. Sony.
M: Bushnell 6MP Trophy Cam Essential Trail Camera with Night Vision. Sports & Outdoors. Sports & Fitness. Bushnell.
N: Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI). Electronics. Computers & Accessories. Sabrent.
O: Set of 2 MINI MASON JARS, glass with metal screw-top lids. Home & Kitchen. Kitchen & Dining. Greenbrier.
P: Fenzer Rechargeable Cordless Phone Battery for GE 5-2450 5-2459 5-2461 5-2478 Cordless Telephone Battery Replacement Pack. Electronics. Accessories & Supplies. Fenzer.
Q: EldHus sb001 Headphone Adapter, B, for kindle3. Electronics. eBook Readers & Accessories. EldHus.
R: SIGNALS Two Piece Loving Elephants with Heart Sculpture - Exclusive. Home & Kitchen. Home Dcor. SIGNALS.
S: IRULU New Portable 10.1" 10.5" Android Tablet USB Keyboard Case - Blue. Electronics. Computers & Accessories. iRULU.
T: Brainstormer Ultra Slim Cat6 Snagless Ethernet Cable, 3 Feet, 2 Pack (Blue) with 5 RJ45 Connector Fix / Repair Clips. Electronics. Computers & Accessories. Brainstormer...


assistant
Answer: R