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: PU Leather Mid-Back Task Chair Office Desk Task Chair H20. Home & Kitchen. Furniture. BestOffice.
2nd: Pentek DGD-5005 Spun Polypropylene Filter Cartridge, 10" x 4-1/2". Home & Kitchen. Kitchen & Dining. Pentek.

Options:
A: Premium 7” Inches Rearview Car LCD Monitor by Pyle – Parking Monitor Assistant with Wireless Remote Control – Full Color Wide Screen – Can Be...
B: Westinghouse SK-32H240S 32-Inch LCD HDTV. Electronics. Television & Video. Westinghouse.
C: UTG Combat Operation 42" RC Series Gun Case, Black . Sports & Outdoors. Sports & Fitness. UTG.
D: LG CINEMA Clip-On (Pack of 2) Compatible Passive 3D Glasses by Ultimate 3D Heaven. Electronics. Accessories & Supplies. 3DHeaven.
E: DeSantis 085BA8BZ0 Glock 43 Thumb Break Mini Slide Holster, Black. Sports & Outdoors. Sports & Fitness. DeSantis.
F: Panorama 2 S & X2 Suction Cup 3M Adhesive (COMBO) Ball Socket 360 Degree U-Bracket Mount for PowerUCC. Electronics. Car & Vehicle Electronics. PowerUCC.
G: Pour Over Goose Neck Electric Kettle. Home & Kitchen. Kitchen & Dining. Tru.
H: Kid Casters Jimmy Houston Fishing Kits. Sports & Outdoors. Sports & Fitness. Kid Casters.
I: The Most Amazing Tea Infuser - The Steep Stir! Premium Tea Infuser - Tea Strainer - Tea Steeper - Best Portable Loose Leaf Tea Infuser!...
J: iDream365 3Pcs Purple Touch Screen Capacitive Stylus/Styli Pen for Apple iPad 2,3,4,5,Motorola Xoom, Samsung Galaxy Tab, BlackBerry PlayBook. Electronics. Computers & Accessories. iDream365.
K: Rachael Ray Stoneware 2.75-Quart Casseround Covered Round Casserole, Red. Home & Kitchen. Kitchen & Dining. Rachael Ray.
L: HOMCOM 48" Multi Level Computer Desk with Shelves - Lavender White. Home & Kitchen. Furniture. HOMCOM.
M: KingLinen Twin Miley Mini Ruffle Comforter Set White. Home & Kitchen. Bedding. S.L. Home Fashions.
N: MiniPro 2-Bay FireWire 800, USB 3.0, eSATA RAID Hard Drive Enclosure. Electronics. Computers & Accessories. Oyen Digital.
O: Vortex Optics Viper PST First Focal Plane Riflescopes. Sports & Outdoors. Sports & Fitness. Vortex Optics.
P: Champion Heavy Duty Leather Dip Belt. Sports & Outdoors. Sports & Fitness. Champion Barbell.
Q: 19-in-1 USB 2.0 Memory Card Reader Writer MicroSD SDHC SDXC. Electronics. Computers & Accessories. MediaMart.
R: XCSOURCE Spanner Wrench 3 Tips For Camera DSLR DC Lens Repair Repairing Open Tools DC313. Electronics. Camera & Photo. XCSOURCE.
S: nuLOOM OWTC01A Vintage Lindsy Accent Rugs, 7' 10" X 11' 2", Blue. Home & Kitchen. Home Dcor. Rugs USA.
T: Poetic SLIMLINE Portfolio for Apple iPad Mini Tablet Black (Fit Apple iPad Mini and iPad Mini 2 with Retina Display 2nd Gen., Not Fit Apple...


assistant
Answer: L