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: Cold Steel Sax Machete (Cordura Sheath). Sports & Outdoors. Sports & Fitness. Cold Steel.
2nd: Cold Steel Sax Machete (Cordura Sheath). Sports & Outdoors. Sports & Fitness. Cold Steel.

Options:
A: LPGI Dark Side of the Moon. Home & Kitchen. Wall Art. LPGI.
B: Set of 3 Retro 50's Style Coffee, Tea & Sugar Tin Canisters. Home & Kitchen. Kitchen & Dining. CAS.
C: Dunfire Replacement Clip Holder Case + Wristband Set Fitbit One Wireless Activity Plus Sleep Tracker. Sports & Outdoors. Sports & Fitness. Dunfire.
D: Impact Folding Beauty Dish (34"). Electronics. Camera & Photo. Impact.
E: MoKo Case for Kindle E-Reader (8th Generation 2016) - Premium Cover with Auto Wake/Sleep for Amazon Kindle (6" Display, 8th Gen 2016 Release), Indigo. Electronics...
F: CyberPower EC350G Ecologic UPS System, 350VA/255W, 8 Outlets, ECO Mode, Compact. Electronics. Computers & Accessories. CyberPower.
G: KabelDirekt Digital Coaxial Audio Video Cable (6ft) Satellite Cable Connectors - Coax Male F Connector Pin - Coax Cables for Satellite Television - PRO Series...
H: 6 Cell replacement Battery for Dell Inspiron 1525 1526 Series Laptop. Electronics. Computers & Accessories. GS.
I: YONGNUO YN360 LED Video Light with Adjustable Color Temperature 3200K-5500K. Electronics. Camera & Photo. YONGNUO.
J: InzhiRui Bluetooth Headphones Wireless Bluetooth Headset Sport Stereo in-Ear Noise Cancelling Sweatproof Running Earbuds with Mic for iPhone 6s Samsung S6 and Android. Sports &...
K: Leegoal 1M Extended USB Data Charger Sync Cable for ASUS Digital Camera TF101 TF201 TF300(Black). Electronics. Computers & Accessories. Generic.
L: Ambient Weather BC-2000 Intelligent Battery Charger for AA/AAA Rechargeable Batteries. Electronics. Camera & Photo. Ambient Weather.
M: Handmade Wooden Log Cabin Ornament Lodge 3". Home & Kitchen. Home Dcor. Kipmik Products.
N: HOTER Men's Compression Shirt to Hide Gynecomastia Moobs Chest Slimming Body Shaper Undershirt.  HTER.
O: Cold Steel Cutlass Machete 97DRMS. Sports & Outdoors. Sports & Fitness. Cold Steel.
P: Takara Kabuto Single Speed Road Bike. Sports & Outdoors. Outdoor Recreation. Takara.
Q: Body Champ Beginner and Light Lifting Standard Weight Bench with Leg Lift Curl Developer Extension Attachment (with UPDATED, BETTER packaging) WB125. Sports & Outdoors. Sports...
R: FecPecu Bluetooth MP3 Player, 4GB, Blue. Electronics. Portable Audio & Video. FecPecu.
S: Kikkerland Zipper Bags (Set of 4), Small. Home & Kitchen. Kitchen & Dining. Kikkerland.
T: Farberware BBQ Plastic Corn Dishes with 8 Corn Holders (Set of 4). Home & Kitchen. Kitchen & Dining. Farberware.


assistant
Answer: O