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: UE MINI BOOM Wireless Bluetooth Speaker - Red. Electronics. Portable Audio & Video. Ultimate Ears.
2nd: INSTEN 3.5mm Universal Car Audio Cassette Adapter for Smartphones, 3-Feet Cord (Black). Electronics. Portable Audio & Video. INSTEN.

Options:
A: PECO Pecoware 1 Princess Spoon & Fork Set. Home & Kitchen. Kitchen & Dining. PECO.
B: Large Red Gingham Pennant Banner - Party Decorations & Banners. Home & Kitchen. Event & Party Supplies. Fun Express.
C: Belva 5 meters 6-Channel GRAY Car Audio RCA Interconnect Cables [BBIC65]. Electronics. Accessories & Supplies. Belva.
D: iLuv Stereo Bluetooth Earclip Headphones. Electronics. Headphones. jWIN.
E: Black Ceramic Two Piece Creamer & Sugar Service Set. Home & Kitchen. Kitchen & Dining. Amsterdam.
F: Vaulia Lightweight Microfiber Duvet Cover Sets, Paisley Pattern Design, Queen Size. Home & Kitchen. Bedding. Vaulia.
G: Culturenik Doctor Who Exploding Tardis TV Show Poster (Van Gogh's Exploding Tardis) Poster Print 12x36. Home & Kitchen. Wall Art. Culturenik.
H: Thirstystone Air Force Car Cup Holder Coaster, 2-Pack. Home & Kitchen. Kitchen & Dining. Thirstystone.
I: AFUNTA 7.1 Channel USB External Sound Card Audio Mic Adapter USB Bus-powered Mode Highly Flexible Audio Interface Plug in and Play Kit Compatible with All...
J: Graduated Calf Compression Sleeves Socks: Best Men & Women Pain Relief Stocking for Shin Splints, Leg Cramps Strains, Varicose Veins, Swelling. Increase Blood Circulation, Anti...
K: Ultra Clear Screen Protector for Microsoft Zune 30Gb MP3 Player. Electronics. Portable Audio & Video. Kroo.
L: Bar Glass Rinser Assembly for Drip Tray. Home & Kitchen. Kitchen & Dining. KegWorks.
M: HCMY Women's 3 Hook 3/4 Inch Spacing Widen Bra Extender Multi 5 colors One Size. Home & Kitchen. Storage & Organization. HCMY.
N: Coleman 2045;70 Degree Signature Series Multi Comfort Sleeping Bag. Sports & Outdoors. Outdoor Recreation. Coleman.
O: iPad mini case, iPad mini 2 case, iPad mini 3 case, Thilon (TM) Tri-Fold Apple iPad mini case, iPad mini cover, light weight w/ wake...
P: SoundPEATS S1 Bluetooth Stereo Headphone - Supports Wireless Music Streaming and Hands-free Calling (Black). Electronics. Headphones. SoundPEATS.
Q: Feetures High Performance Light Cushion No Show Tab Relfector. Sports & Outdoors. Sports & Fitness. Feetures!.
R: American Shield Girls Mini Waterproof ipad Backpack Casual Lightweight Light Strong Sport Daypack 06051. Electronics. Computers & Accessories. American Shield.
S: Aurum Cables - Pack of 3 High Speed HDMI Cable 2.0 with Ethernet - Supports 3D & Audio Return Channel [Latest Version] - 0.6 Feet...
T: Sugarbooger Set of 3 Good Lunch Snack Sack, Flutterby (Discontinued by Manufacturer). Home & Kitchen. Kitchen & Dining. SUGARBOOGER.


assistant
Answer: R