diff --git a/app/main.py b/app/main.py
index e39822c..082beb3 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,8 +1,11 @@
 from fastapi import FastAPI, __version__
 from pydantic import BaseModel
 from typing import Set, List, Optional, Dict
+from random import randint
 
-from models.solver_content import SolverContent
+from models.solve_request import SolveRequest
+from models.solve_response import SolveResponse
+from models.form import Form
 
 app = FastAPI()
 
@@ -26,5 +29,6 @@ async def ready():
   return 'OK'  # just means we're on air
 
 @app.post('/solve/')
-async def solve(solver_content: SolverContent):
-  return solver_content
+async def solve(solve_request: SolveRequest):
+  response = SolveResponse(response_id=randint(100,5000), forms=[Form(items=solve_request.items)])
+  return response
diff --git a/app/models/form.py b/app/models/form.py
new file mode 100644
index 0000000..4963daa
--- /dev/null
+++ b/app/models/form.py
@@ -0,0 +1,7 @@
+from pydantic import BaseModel
+from typing import List
+
+from models.item import Item
+
+class Form(BaseModel):
+  items: List[Item]
diff --git a/app/models/solver_content.py b/app/models/solve_request.py
similarity index 91%
rename from app/models/solver_content.py
rename to app/models/solve_request.py
index 89586d1..df213bb 100644
--- a/app/models/solver_content.py
+++ b/app/models/solve_request.py
@@ -7,7 +7,8 @@ from models.irt_model import IRTModel
 from models.objective_function import ObjectiveFunction
 from models.advanced_options import AdvancedOptions
 
-class SolverContent(BaseModel):
+class SolveRequest(BaseModel):
+  token: str
   items: List[Item]
   constraints: List[Constraint]
   irt_model: IRTModel
diff --git a/app/models/solve_response.py b/app/models/solve_response.py
new file mode 100644
index 0000000..dcdc3d7
--- /dev/null
+++ b/app/models/solve_response.py
@@ -0,0 +1,8 @@
+from pydantic import BaseModel
+from typing import List, Optional
+
+from models.form import Form
+
+class SolveResponse(BaseModel):
+  response_id: int
+  forms: List[Form]
diff --git a/app/models/targets.py b/app/models/targets.py
index c50f39f..7b56132 100644
--- a/app/models/targets.py
+++ b/app/models/targets.py
@@ -1,8 +1,8 @@
 from pydantic import BaseModel
 
 class Targets(BaseModel):
-  neg_2_5: int
-  neg_1_5: int
-  neg_0_5: int
-  _0_5: int
-  _1: int
+  n_2_5: int
+  n_1_5: int
+  n_0_5: int
+  p_0_5: int
+  p_1: int