diff --git a/subgroups/sbom-sg/outcomes/SPDX-Lite/Proposal_v3.0/model/Lite/SPDX-Lite.md b/subgroups/sbom-sg/outcomes/SPDX-Lite/Proposal_v3.0/model/Lite/SPDX-Lite.md
index e6dba79d..53262fda 100644
--- a/subgroups/sbom-sg/outcomes/SPDX-Lite/Proposal_v3.0/model/Lite/SPDX-Lite.md
+++ b/subgroups/sbom-sg/outcomes/SPDX-Lite/Proposal_v3.0/model/Lite/SPDX-Lite.md
@@ -15,3 +15,56 @@ The SPDX-Lite namespace defines concepts related to SPDX-Lite.
 - id: https://rdf.spdx.org/v3/SPDX-Lite
 - name: SPDX-Lite
 
+## External properties restrictions  
+
+- /Software/SBOM/creationInfo <- /Core/Element/creationInfo  
+  * minCount: 1 (Originally minCount: 1 in Element class)  
+- /Software/Package/spdxId  <- /Core/Element/spdxId  
+  * minCount: 1 (Originally minCount: 1 in Element class)  
+- /Software/Package/name <- /Core/Element/name  
+  * minCount: 1 (External properties restricted in Package class)  
+- /Software/Package/comment <- /Core/Element/comment  
+  * minCount: 1  
+- /Software/Package/creationInfo <- /Core/Element/creationinfo  
+  * minCount: 1 (Originally minCount: 1 in Element class)  
+- /Software/Package/suppliedBy <- /Core/Artifact  
+  * minCount: 1  
+- /Software/Package/packageVersion  
+  * minCount: 1  
+- /Software/Package/downloadLocation  
+  * minCount: 1  
+- /Software/Package/homePage  
+  * minCount: 1  
+- /Software/Package/concludedLicense <- /Software/SoftwareArtifact/concludedLicense  
+  * minCount: 1  
+- /Software/Package/declaredLicense <- /Software/SoftwareArtifact/declaredLicense  
+  * minCount: 1  
+- /Software/Package/copyrightText <- /Software/SoftwareArtifact/copyrightText  
+  * minCount: 1  
+
+- /Core/Relationship/relationshipType
+  * minCount: 1 (Originally minCount: 1 in Relationship class)  
+- /Core/Relationship/from  
+  * minCount: 1 (Originally minCount: 1 in Relationship class)  
+
+The following elements are what we want to use to describe licenses that does not have SPDX short identifier.  
+
+- /ExpandedLicensing/CustomLicense ?
+
+OR
+- /SimpleLicensing/AnyLicenseInfo ?
+
+## Questions  
+
+We are not sure how to describe the following three points, so we'd like to ask SPDX community.  
+
+1. Which class and element should be used to represent a license with or without an SPDX short ID?  
+**It seems to reconfigure Licensing classes in [issue#399](https://github.com/spdx/spdx-3-model/pull/399).**  
+
+2. How do we list the elements that need to be listed if they are present in the deliverable but not if they are not?  
+For example, if there is a CustomLicense, it should be listed but not if there is none.  
+
+3. When we receive an archived file of an OSS package, how should the file name be represented?  
+For example, if we receive ```nginx``` ```v1.25.1``` in the file ```nginx-1.25.1.tar.gz```, ```Package/name == nginx``` and ```Package/packageVersion === 1.25.1```. So what classes and elements should be used in the file names passed in and how should they be associated with the package information?  
+
+## EOF