具有多个输入的AWS数据管道活动

As part of an Amazon AWS data pipeline, I have a hive activity using two unstaged S3 data nodes as input. What I want is to be able to set two script variables on the activity, each pointing to an input data node, but I can't get the syntax right. With the single input, I could write the following and it would work just fine:As part of an Amazon AWS data pipeline, I have