Follow the below instructions to answer the question:

1. Base expression to be used for getting logs is '_index=part* and ((_dataTier=Continuous OR _dataTier=Frequent) ) and "[ASR]"'

2. Log Message is a JSON that contains the fields locale, env, rampCode, message and serviceId. For every request a log message "[ASR] stream comes!" is printed in the beginning.

3. To parse any field X inside a log message, append '| json field=_raw "X"' to the query

4. To search any field X with value Y inside a log mesage, first parse the field and then append '| where X=Y' to the query

Question: Generate an expression to get logs in prd env for en-GB locale and tv rampCode Write your response with exactly 7 paragraphs, separated with the markdown divider: ***.
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