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: RSVP Endurance Egg Rings (set of 4). Home & Kitchen. Kitchen & Dining. RSVP International.
2nd: Frigidaire 5,000 BTU 115V Window-Mounted Mini-Compact Air Conditioner w/ Mechanical Controls, FFRA0511Q1. Home & Kitchen. Heating, Cooling & Air Quality. Frigidaire.
3rd: LA Sweet Home Silicone Oven Mitts 464 F Heat Resistant Plaid Cooking Gloves Non-Slip Grip Pot Holders for Kitchen Oven, BBQ Grill and Fire Pits...
4th: KitchenAid KSB1575ER 5-Speed Diamond Blender with 60-Ounce BPA-Free Pitcher - Empire Red. Home & Kitchen. Kitchen & Dining. KitchenAid.

Options:
A: Aquasana AQ-6000 27oz Glass Water Bottles (6-Pack). Home & Kitchen. Kitchen & Dining. Aquasana.
B: Mud Pie Starfish Wide Pasta Serving Bowl, White. Home & Kitchen. Kitchen & Dining. Mud Pie.
C: Surpahs Touch Anti-Fingerprint 11 Lb/5 Kg Precision Digital Kitchen Food Scale w/ Blue Backlit Display. Home & Kitchen. Kitchen & Dining. Surpahs.
D: Kate Aspen Leaf Print Tea Light Holder with Acorn Charm (Set of 4), Frosted/Gold/Copper. Home & Kitchen. Event & Party Supplies. Kate Aspen.
E: STERILITE 18351006 Storage Tote, 30 Gallon, Set of 6. Home & Kitchen. Storage & Organization. STERILITE.
F: Rosco Cinegel 1.5 Inch X 3.25 Inch Swatchbook. Electronics. Camera & Photo. Rosco.
G: Iyzer AM FM Pocket Radio, AM FM Mini Radio Portable with Superior Reception and Clear Sound, Battery Operated Pocket Radio with 3.5mm Headphone Jack. Electronics...
H: Opteka Professional Wrist Grip Strap for Digital & Film SLR Cameras (Black). Electronics. Camera & Photo. Opteka.
I: Full&Love Files Data Transfer USB Cable Charging Cord + S-Video to RCA Video Connector AV Cable for Sony Dcr- Sr40/e Digital Camera Black. Electronics. Computers...
J: Coaster Contemporary Cappuccino Three Piece Round Occasional Table Set with Glass Tops. Home & Kitchen. Furniture. Coaster Home Furnishings.
K: Kodak PIXPRO Friendly Zoom FZ41 16 MP Digital Camera with 4X Optical Zoom and 2.7" LCD Screen (Black). Electronics. Camera & Photo. Kodak.
L: Patriot Signature 4GB DDR3 PC3-12800 (1600MHz) CL11 DIMM Memory Module PSD34G160081. Electronics. Computers & Accessories. Patriot.
M: Redfield 114503 Rebel 10x50mm Binocular. Electronics. Camera & Photo. Redfield.
N: Bipra 15.6 Inch Laptop Messenger Bag Grey/orange Design Suitable for 15.6 Inch Fits Most Devices Netbooks, Laptop Computers, Tablets, Ipad. Electronics. Computers & Accessories. BIPRA.
O: Reverse Osmosis Water Storage Tank 14 Gallon. Home & Kitchen. Kitchen & Dining. PA-E.
P: Bipra 15.6 Inch Laptop Bag with Shoulder Strap Black/red Suitable for 15.6 Inch Laptops. Electronics. Computers & Accessories. BIPRA.
Q: Cinebags AC Pouch CB03. Electronics. Camera & Photo. CineBags.
R: Premium Quality Original SAMSUNG HM1950 Hands Free Bluetooth Headphone (Discontinued by Manufacturer). Electronics. Headphones. AGKupel.
S: Prevue Hendryx 3100B Cage Corner Shelf, Black. Home & Kitchen. Home Dcor. Prevue Hendryx.
T: King Kooker KK2S Stainless Steel Deep Fry Pan with Lid. Home & Kitchen. Kitchen & Dining. King Kooker.


assistant
Answer: S