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: Oster Equine Care Series 7-Piece Grooming Kit. Sports & Outdoors. Sports & Fitness. Oster.
2nd: Trail Quest Hammock - Best Hammocks for Camping Equipment Sports Outdoors Gear Backpack Hiking Hunting Patio Furniture Relaxation Includes Built-in Travel Bag. Sports & Outdoors...
3rd: SE FS374 All-Weather Emergency 2-IN-1 Fire Starter and Magnesium Fuel Bar, Flint and Steel Kit. Sports & Outdoors. Outdoor Recreation. SE.
4th: TuffRider Childs Ventilated Tight. Sports & Outdoors. Sports & Fitness. TuffRider.
5th: Equistar Child's Pull On Cotton Knee Patch Riding Breeches. Sports & Outdoors. Sports & Fitness. Equi-star.
6th: Perri's Child's Zipper Half Chap. Sports & Outdoors. Sports & Fitness. Perri's.

Options:
A: Mpow Bluetooth 4.0 Stereo Foldable Headphones Headset with AAC AptX - Supports Wireless Music Streaming and Hands-Free calling for iPhone iPhone 6 / 6 Plus...
B: Sony 50DMR47RS4 16x DVD-R Discs 50 Disc Spindle (Discontinued by Manufacturer). Electronics. Accessories & Supplies. Sony.
C: Philips HTL2163B 120W, HDMI, Bluetooth Soundbar Speaker. Electronics. Portable Audio & Video. Philips.
D: ZaapTV HD409N 1080p IPTV for Arabic, Turkish, Persian, Greek and African Channels & Movies. Electronics. Television & Video. ZaapTV.
E: DROK Ultra Small Mini DC Power Module DC 3V to 5V 1A USB Battery Converter Step Up Module Charge for MP3/MP4/Phone Samsung Galaxy S3 iPad...
F: ViewSonic VP2365WB 23-Inch IPS LCD Monitor. Electronics. Computers & Accessories. ViewSonic.
G: CEARI [2 Pack] DK-23 Rubber Eyecup Eyepiece Viewfinder for Nikon D7100 D7200 D300 D300s DSLR Camera + MicroFiber Clean Cloth. Electronics. Camera & Photo. CEARI.
H: TASCO World Class 20-60x80 Zoom Waterproof/Fogproof Spotting Scope w/Tripod. Sports & Outdoors. Sports & Fitness. TASCO.
I: Stamina Fold-to-Fit Folding Equipment Mat (84-Inch by 36-Inch). Sports & Outdoors. Sports & Fitness. Stamina.
J: Pro-Tec - Street Knee and Elbow Pad Set. Sports & Outdoors. Outdoor Recreation. Pro-Tec.
K: Moonshuttle Standard Frame Mount(Wide Side Open) for Gopro 3 3+ + Tripod Mount + Lens Cap Bundle. Electronics. Camera & Photo. Moonshuttle.
L: BenQ Zowie XL2411P 24 inch 144Hz Esports Gaming Monitor, 1080p, 1ms Response Time, Black Equalizer, Color Vibrance, Height Adjustable, Display Port, HDMI. Electronics. Computers &...
M: splash MASQUE Screen Protector Film Clear (INVISIBLE) for Apple iPad Mini (2-Pack). Electronics. Computers & Accessories. Splash Products.
N: HP HD7500S Personal Media Drive 750 GB USB 2.0 External Hard Drive. Electronics. Computers & Accessories. HP.
O: For Apple Macbook Pro 15 15" Inch Model A1286, DigitalsOnDemand ® Black Rubberized Hard Shell Laptop Case Cover with Free Keyboard Cover (Will Not Fit...
P: SadoTech Voice Alert Motion Sensor Doorbell with Recordable Audio, Alarm, or Ding Dong, Caregiver Alert Voice Reminder. Electronics. Security & Surveillance. SadoTech.
Q: Ideal Security Inc. SK632 Wireless Senor Alert. Electronics. Security & Surveillance. Ideal Security Inc.
R: U.S. Marines Kit Airsoft Rifle and Pistol Battle Kit. Sports & Outdoors. Sports & Fitness. U.S. Marines.
S: TuffRider Children's Starter Front Zip Paddock Boots | Kids Equestrian Horse Riding English Boots. Sports & Outdoors. Sports & Fitness. TuffRider.
T: Wireless Keyboard and Mouse Combo (white mouse). Electronics. Computers & Accessories. AICHOC.


assistant
Answer: S