Log is a table that contains the columns [locale, rampcode, env, ts, message, level].

Below is the description of columns

1. locale refers to application locale
2. rampcode refers to the type of device application is serving (values can be [tv, mobile])
3. env refers to deployment environment (values can be [prd, stg or int])
4. ts refers to timestamp
5. level refers to severity level of the log (info, debug or error)

Write a SQL query to get the data for the below user pompt - 

Get the error logs for en-us for the last 15 mins in production. Add stress words which are capitalized. Limit those stress words for less than 2 times.
user