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: Given the products the user has purchased in history, rank the items in the listed options and output the item that the user is most likely to purchase next. Answer from one of the options.

Input:
Purchase History:
1st: Sennheiser HD280PRO Headphones (old model). Electronics. Headphones. Sennheiser.
2nd: Roku 2 Streaming Media Player (4210R) with Faster Processor (2015 Model). Electronics. Television & Video. Roku.
3rd: Skullcandy Air Raid Water-resistant Drop Proof Bluetooth Portable Speaker, Black. Electronics. Portable Audio & Video. Skullcandy.
4th: Kaito KA228 Pocket-Size 9-Band AM/FM Shortwave Radio, Silver. Electronics. Portable Audio & Video. Kaito.
5th: iKross K90 Gaming Keyboard - 3 Color Backlit/Breathing Mode / 19 Key Anti-Ghosting/Water-Resistant/PC Desktop Online Game/Plug & Play/Compatible with Windows OS and Mac OS. Electronics...
6th: PWR+ UL Listed 6.5 Ft Extra Long 2.1A Rapid USB Charger Cord Power Adapter for Tablets and eReaders for Use with New Hd Hdx Tablet...

Options:
A: G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBSR. Electronics. Computers & Accessories. G.Skill.
B: Ice Cooling Towel -Sports Instant Snap Golf Gym Yoga Towel For Your Neck- For All Sports and Outdoor Activities- Highly Effective Cooling- Comes With An...
C: Soundstream STL4.500 4-Channel A/B Amplifier (Black). Electronics. Car & Vehicle Electronics. Soundstream.
D: Defrosting Tray (14" x 8" x 1"). Home & Kitchen. Kitchen & Dining. Kuc.
E: Snap Ashwood Poster Frame, 16 by 20-Inch, Brown. Home & Kitchen. Wall Art. Snap.
F: Kenda Small Block 8 XC Mountain Bike Tire. Sports & Outdoors. Outdoor Recreation. Kenda.
G: Impecca CDP72 Personal MP3/CD Player with Stereo Earbuds. Electronics. Portable Audio & Video. Impecca.
H: Elasticized Patio Table Cover, Yellow - Outdoor Table Covers. Home & Kitchen. Kitchen & Dining. Miles Kimball.
I: Terrestrial Dry Fly Collection - 12 Trout Flies + Fly Box. Sports & Outdoors. Sports & Fitness. Discountflies.
J: Steven Raichlen Best of Barbecue 14-Inch by 11.88-Inch Cast Iron Plancha. Home & Kitchen. Kitchen & Dining. Steven Raichlen.
K: Commercial Bargains 2 Jumbo 11" x 50' Commercial Vacuum Sealer Saver Bags Sous Vide Food Storage. Home & Kitchen. Kitchen & Dining. Commercial Bargains.
L: Coleman Company Biodegradable Camp Toilet Paper 4 Pack. Sports & Outdoors. Outdoor Recreation. Coleman.
M: Gaggia 90901 Platinum Swing Up Automatic Espresso Machine with Milk Island. Home & Kitchen. Kitchen & Dining. Gaggia.
N: Jolmo Lander Titanium Waterproof Peanut Fire Starter Emergency Keychain Lighter Survival EDC Gear. Sports & Outdoors. Outdoor Recreation. Jolmo Lander.
O: Pack of 200, Assorted Bright Color Latex Balloons, Made in USA!. Home & Kitchen. Event & Party Supplies. Garage Sale Pup.
P: ChefLand Stainless Steel Strainer with Support Handle (10-Inch). Home & Kitchen. Kitchen & Dining. ChefLand.
Q: KRUPS ZB500E Infinity Slow Juice Extractor with 2 Stainless Steel Baskets f. Home & Kitchen. Kitchen & Dining. KRUPS.
R: ColorBird Solid Cotton Linen Tablecloth Waterproof Macrame Lace Table Cover for Kitchen Dinning Tabletop Decoration (Square, 55"55", Grey). Home & Kitchen. Kitchen & Dining. ColorBird.
S: Garmin Oregon 700 Handheld GPS. Electronics. GPS, Finders & Accessories. Garmin.
T: StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART - PCIe RS232 Serial Card. Electronics. Computers & Accessories. StarTech.


assistant
Answer: S