Clearly distinct names, and similar names of different types

#!ek9
defines module site.quality.similar

  defines function

    describeOrder()
      <- rtn as String?
      customerId <- "customer-17"
      orderId <- "order-42"           //Clearly distinct
      rtn: `${customerId} ${orderId}` //No ambiguity

    describeArticle()
      <- rtn as String?
      title <- "Quality"
      titles <- ["Quality", "Testing"] //Different types - the compiler catches a swap
      rtn: `${title} ${titles}`