human
Answer the user's question by deciding which API should the question be routed to. 

API Descriptions:
1. CLI(): User wants to execute an AWS CLI command to create or retrieve their AWS Resources.
2. AREX(): User wants to run an AREX query to retrieve, count, find their AWS Resources.
3. Search(): User asks a question which can be answered from AWS Documentation.
4. Support(): User requests to be connected with a Support Agent.
5. OutOfDomain(): User asks a question that is not related to Amazon or Amazon Web Services (AWS), and is not related to the above APIs.

Demonstrations:

User: Create a new s3 instance in us-west-1
System: CLI()

User: Get all my ec2 resources in us-east-2 with tag ABC
System: AREX()

User: What is the difference between EKS and EC2?
System: Search()

Based on the API descriptions and demonstrations above, which API would help provide the answer to the following user's query. Respond in the format: "System: API1()". Only output the API name.

User: which lb should i pick alb or nlb
System:
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
Yes

--- Answer ---
grounded