Dear Madam: Thanks for your reply. And again I have faced some problems and need help:  1. In LAB-06, 'adjective-relation' has been introduced for LKEYS.ALTKEYS features of demonstrative determiners. But, there is no such type is declared in 'matrix.tdl' file and LKB doesn't find it. What might goes wrong here? 2. In LAB-06, in section for demonstrative pronoun, it says that the LBL values of two relations (LKEYS.KEYREL noun-relation and LKEYS.ALTKEYREL event-relation) are to be identified with each other. I think I did the same thing as the following code (reentrancy with '#lbl' ):  ;;;;;;;;;;;;;;;; pronoun lexeme type ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; pronoun-lex := sg-nouns & [ SYNSEM [ LOCAL.CAT.VAL.SPR < [ OPT + ] >,            LKEYS.KEYREL noun-relation &                         [ PRED "_pronoun_n_rel" ] ] ].   ;;;;;;;;;;;;;;; demonstrative pronoun ;;;;;;;;;;;;;;;;;;; demo-pronoun-lex := pronoun-lex & [ SYNSEM [ LOCAL.CONT.HOOK.INDEX.COG-ST activ+fam,            LKEYS [ KEYREL.LBL #lbl,                    ALTKEYREL event-relation &                              [ LBL #lbl ] ] ] ].   ;;;;;;;;;;;;;;;;; lexical entry ;;;;;;;;;;;;;;;;; ei_demo := demo-pronoun-lex & [ STEM < "ei" >,   SYNSEM [ LOCAL.CONT.HOOK.INDEX.PNG [ PER third,                                        GRD non-hon,                                        TPC low ],            LKEYS.ALTKEYREL.PRED proximal+dem_q_rel ] ].  It can parse, but it can't generate because it couldn't show any MRS for the main transitive verb of the sentence. For example: "naafid bhaat khaay" "Naafid rice eats" (Naafid eats rice) There is no MRS for the main verb 'khaay' which should be 'eat_v_rel' and handle 'h1', but the LTOP of the whole MRS is 'h1' as usual. Did I do any mistake here about following the lab guidelines? 3. I 've written some morphological rules for verbs. Free word order language 'Bangla' has subject-verb agreements only with person variations. However, when I try to generate from a given parse tree, it only generate the sentences with the right most verb form of the rule. An example for 3rd-person verb form at 'irules.tdl' file: 3p-verb := %suffix (* e) (* chhe) (* chhila) (* chhilo) (* echhe) (* echhila) (* be) (a ay) (a acchhe) (aa eyechhe) (jaa giechhe) (aa eyechhila) (aa eyechhilo) (jaa giechhila) (jaa giechhilo) (e ey) (e icchhe) (e icchhila) (e icchhilo) (e iechhe) (e iechhila) (e iechhilo) (e ibe) 3p-verb-lex-rule. Here, the right most 3rd person verb form is "(aa eyechhilo)" for those verbs which have ending letters 'aa'. I know LKB checks the rules from right to left, but it generates the sentences with only this verb form, not with other verb forms at left. For example an input sentence: "naafid bhaat khaay" (Naafid eats rice), it generates only: "naafid bhaat kheyechhilo" (Naafid ate rice) "naafid kheyechhilo bhaat" ............................But, not any sentence like "naafid bhaat khaacchhe" (Naafid is eating rice). Here, root form of the verb 'khaay' is 'khaa' at 'lexicon.tdl' file.   4. The last question here about single word parsing, of course I should ask you long before, but I didn't even try with it. I can't parse a single word yet, although I 've changed the 'globals.lsp' file as following:  (defparameter *start-symbol* '(root lex-root)   "specifing valid parses") No, I don't get the single word parse. Thanks a lot for being patience to read such a long mail of me. -- -Altaf