diff --git a/format specs/Contexts.md b/format specs/Contexts.md
index 3ce01e15..7307d0b8 100644
--- a/format specs/Contexts.md	
+++ b/format specs/Contexts.md	
@@ -4,8 +4,8 @@ The context input file is in the form of CSV data with the following fields.
 
  Field | Type | Required |  Note |
 ----------- |  ---- | ---------| -----  |
- Directionality | string | Y | See [FlowablePrimaryContext](FlowablePrimaryContext.md). |
- Environmental Media | string | Y | See [FlowablePrimaryContext](FlowablePrimaryContext.md). |
+ Directionality | string | Y | See [FlowablePrimaryContexts](FlowablePrimaryContexts.md). |
+ Environmental Media | string | Y | See [FlowablePrimaryContexts](FlowablePrimaryContexts.md). |
  Vertical Strata | string | N | A secondary context component that defines atmospheric or subterranean strata, like `Troposphere` |
  Land Use | string | N | A secondary context component that indicates if the land use is human-dominated or a primary terrestrial or aquatic natural use. |
  Human-Dominated | string | N  |  A secondary context component for naming human-dominated land use type, like `Urban`. Used if Land Use is `Human-Dominated`.|
diff --git a/format specs/README.md b/format specs/README.md
index 60425b6d..d8d41860 100644
--- a/format specs/README.md	
+++ b/format specs/README.md	
@@ -2,5 +2,5 @@ Format specifications for input files, [Flowables](Flowables.md), [FlowablePrima
 [FlowableAltUnits](FlowableAltUnits.md), [Contexts](Contexts.md), and [SecondaryContextMembership](SecondaryContextMembership.md)
  as well as the formats provided and used by `fedelemflowlist`, [FlowList](FlowList.md) and [FlowMapping](FlowMapping.md).
   See the EPA report linked to in the main [README](https://github.com/USEPA/Federal-LCA-Commons-Elementary-Flow-List/)
-   for an explanation of the purpose the files using these formats.   
+   for an explanation of how the input files in these formats are used to create the flow list.   
  
\ No newline at end of file
diff --git a/format specs/SecondaryContextMembership.md b/format specs/SecondaryContextMembership.md
index 32ad0097..2914ade2 100644
--- a/format specs/SecondaryContextMembership.md	
+++ b/format specs/SecondaryContextMembership.md	
@@ -4,9 +4,9 @@ The secondary context membership input file is in the form of CSV data with the
  
  Field | Type | Required |  Note |
 ----------- |  ---- | ---------| -----  |
- FlowClass | string | Y | The flow class. See [FlowList](FlowList.md). |
- Directionality | string | Y |  A primary context compartment. See [FlowablePrimaryContext](FlowablePrimaryContext.md) |
- Environmental Media | string | Y | A primary context compartment.  See [FlowablePrimaryContext](FlowablePrimaryContext.md) |
+ FlowClass | string | Y | The flow class. Same as 'Class' in [FlowList](FlowList.md). |
+ Directionality | string | Y |  A primary context compartment. See definition in [FlowablePrimaryContext](FlowablePrimaryContext.md) |
+ Environmental Media | string | Y | A primary context compartment.  See definition in [FlowablePrimaryContext](FlowablePrimaryContext.md) |
  Vertical Strata | int | Y | `1` for included and `0` for excluded. See note.  |
  Land Use | int | Y | `1` for included and `0` for excluded. See note. |
  Human-Dominated | int | Y  | `1` for included and `0` for excluded. See note. |