diff --git a/src/abstract/Extend.gf b/src/abstract/Extend.gf
index 2781e92af..a5eb3e24a 100644
--- a/src/abstract/Extend.gf
+++ b/src/abstract/Extend.gf
@@ -27,9 +27,11 @@ abstract Extend = Cat ** {
 
     CompBareCN  : CN -> Comp ;        -- (is) teacher
 
+    PiedPipingQuestSlash : IP -> ClSlash -> QCl ;   -- with whom does John live
+    PiedPipingRelSlash   : RP -> ClSlash -> RCl ;   -- with whom John lives
     StrandQuestSlash : IP -> ClSlash -> QCl ;   -- whom does John live with
-    StrandRelSlash   : RP -> ClSlash -> RCl ;   -- that he lives in
-    EmptyRelSlash    : ClSlash       -> RCl ;   -- he lives in
+    StrandRelSlash   : RP -> ClSlash -> RCl ;   -- that he lives with
+    EmptyRelSlash    : ClSlash       -> RCl ;   -- he lives with
 
 
 -- $VP$ conjunction, separate categories for finite and infinitive forms (VPS and VPI, respectively)
diff --git a/src/common/ExtendFunctor.gf b/src/common/ExtendFunctor.gf
index a5711b37c..1b78fd204 100644
--- a/src/common/ExtendFunctor.gf
+++ b/src/common/ExtendFunctor.gf
@@ -22,9 +22,11 @@ lin
   GenModNP num np cn = DetCN (DetQuant DefArt num) (AdvCN cn (PrepNP possess_Prep np)) ;     -- this man's car(s) ; DEFAULT the car of this man
   GenModIP = variants {} ;     -- Num -> IP -> CN -> IP ; -- whose car(s)
   CompBareCN cn = CompCN cn ; -- (is) teacher ; DEFAULT is a teacher
-  StrandQuestSlash = QuestSlash ; -- whom does John live with ; DEFAULT with whom does John live
-  StrandRelSlash = RelSlash ; -- that he lives in ; DEFAULT in which he lives
-  EmptyRelSlash = RelSlash IdRP ; -- he lives in ; DEFAULT in which he lives
+  StrandQuestSlash = QuestSlash ; -- whom does John live with (default in Eng)
+  StrandRelSlash = RelSlash ; -- that he lives in (standard in Eng)
+  PiedPipingQuestSlash = QuestSlash ; -- with whom does John live (default in most languages)
+  PiedPipingRelSlash = RelSlash ; -- in which he lives  (default in most languages)
+  EmptyRelSlash = RelSlash IdRP ; -- he lives in ; that he lives in
   MkVPS vp = variants {} ;     -- Temp -> Pol -> VP -> VPS ; -- hasn't slept
   ConjVPS = variants {} ;     -- Conj -> [VPS] -> VPS ; -- has walked and won't sleep
   PredVPS = variants {} ;     -- NP -> VPS -> S ; -- has walked and won't sleep
diff --git a/src/english/ExtendEng.gf b/src/english/ExtendEng.gf
index c43e535a0..ec15e1ce9 100644
--- a/src/english/ExtendEng.gf
+++ b/src/english/ExtendEng.gf
@@ -16,7 +16,8 @@ concrete ExtendEng of Extend =
     FocusAP, FocusAdV, FocusAdv, FocusObj, GenIP, GenModIP, GenModNP, GenNP, GenRP,
     GerundAdv, GerundCN, GerundNP, IAdvAdv, ICompAP, InOrderToVP, NominalizeVPSlashNP,
     PassAgentVPSlash, PassVPSlash, ProgrVPSlash, PastPartAP, PastPartAgentAP, PositAdVAdj,  PredVPSVV, PredetRNP, PrepCN,
-    EmbedSSlash, PredIAdvVP, PresPartAP, PurposeVP, ReflPoss, ReflPron, ReflRNP, SlashBareV2S, SlashV2V, StrandQuestSlash, StrandRelSlash,
+    EmbedSSlash, PredIAdvVP, PresPartAP, PurposeVP, ReflPoss, ReflPron, ReflRNP, SlashBareV2S, SlashV2V,
+    StrandQuestSlash, StrandRelSlash, PiedPipingQuestSlash, PiedPipingRelSlash,
     UncontractedNeg, UttAccIP, UttAccNP, UttAdV, UttDatIP, UttDatNP, UttVPShort, WithoutVP, A2VPSlash, N2VPSlash,
     CardCNCard, ProDrop, theyFem_Pron, theyNeutr_Pron
    ]
@@ -50,6 +51,15 @@ concrete ExtendEng of Extend =
     GenModNP num np cn = DetCN (DetQuant (GenNP (lin NP np)) num) cn ;
     GenModIP num ip cn = IdetCN (IdetQuant (GenIP (lin IP ip)) num) cn ;
 
+    PiedPipingRelSlash rp slash = {
+      s = \\t,a,p,agr =>
+          slash.c2 ++ rp.s ! RPrep (fromAgr agr).g ++ slash.s ! t ! a ! p ! oDir ;
+      c = NPAcc
+      } ;
+
+    PiedPipingQuestSlash ip slash =
+      mkQuestion (ss (slash.c2 ++ ip.s ! NPAcc)) slash ;
+
     StrandQuestSlash ip slash =
       {s = \\t,a,b,q =>
          (mkQuestion (ss (ip.s ! NPAcc)) slash).s ! t ! a ! b ! q ++ slash.c2
diff --git a/src/english/QuestionEng.gf b/src/english/QuestionEng.gf
index 775a8f867..95ba15107 100644
--- a/src/english/QuestionEng.gf
+++ b/src/english/QuestionEng.gf
@@ -21,7 +21,7 @@ concrete QuestionEng of Question = CatEng ** open ResEng, Prelude in {
       {s = \\t,a,b,q =>
          (mkQuestion (ss (ip.s ! NPAcc)) slash).s ! t ! a ! b ! q ++ slash.c2
       } ;
-      --- changed AR 5/6/2016: uses stranding; pied-piping in ExtraEng
+      --- changed AR 5/6/2016: uses stranding; pied-piping in ExtraEng and ExtendEng
 
     QuestIAdv iadv cl = mkQuestion iadv cl ;
 
diff --git a/src/english/RelativeEng.gf b/src/english/RelativeEng.gf
index 512d6e1a8..d2572a3e0 100644
--- a/src/english/RelativeEng.gf
+++ b/src/english/RelativeEng.gf
@@ -22,8 +22,8 @@ concrete RelativeEng of Relative = CatEng ** open ResEng, Prelude in {
       c = npNom
       } ;
 
--- Pied piping: "that we are looking at". Pied piping and empty
--- relative are defined in $ExtraEng.gf$ ("at which we are looking",
+-- Preposition stranding: "that we are looking at". Pied piping and empty
+-- relative are defined in $ExtendEng.gf$ ("at which we are looking",
 -- "we are looking at").
 
     RelSlash rp slash = {
diff --git a/src/finnish/VerbFin.gf b/src/finnish/VerbFin.gf
index cee24034d..0bade5825 100644
--- a/src/finnish/VerbFin.gf
+++ b/src/finnish/VerbFin.gf
@@ -80,7 +80,7 @@ concrete VerbFin of Verb = CatFin ** open Prelude, ResFin, StemFin in {
 -}
 
 ----
- SlashV2VNP = StemFin.slashV2VNP ; ---- compilation to pgf takes too long 6/8/2013 hence a simplified version in stemmed/
+SlashV2VNP = StemFin.slashV2VNP ; ---- compilation to pgf takes too long 6/8/2013 hence a simplified version in stemmed/
 
     AdvVP vp adv = insertAdv (\\_ => adv.s) vp ;
     ExtAdvVP vp adv = insertAdv (\\_ => embedInCommas adv.s) vp ;