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external:tectomt:tutorial [2009/01/22 11:53]
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   * Each bundle contains tree shaped sentence representations on various linguistic layers. In our example ''sample.tmt'' we have morphological tree (''SEnglishM'') in each bundle. Later on, also an analytical layer (''SEnglishA'') will appear in each bundle as we proceed with our analysis.    * Each bundle contains tree shaped sentence representations on various linguistic layers. In our example ''sample.tmt'' we have morphological tree (''SEnglishM'') in each bundle. Later on, also an analytical layer (''SEnglishA'') will appear in each bundle as we proceed with our analysis. 
   * Trees are formed by nodes and edges. Attributes can be attached only to nodes. Edge's attributes must be stored as the lower node's attributes. Tree's attributes must be stored as attributes of the root node.   * Trees are formed by nodes and edges. Attributes can be attached only to nodes. Edge's attributes must be stored as the lower node's attributes. Tree's attributes must be stored as attributes of the root node.
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 //Note//: For more information about tree editor TrEd, see [[http://ufal.mff.cuni.cz/~pajas/tred/ar01-toc.html|TrEd User's Manual]]. //Note//: For more information about tree editor TrEd, see [[http://ufal.mff.cuni.cz/~pajas/tred/ar01-toc.html|TrEd User's Manual]].
  
 +If you are not familiar with Makefile syntax, another way of running a scenario in TectoMT is using ''.scen'' file (see ''applications/tutorial.scen''). This file lists the blocks to be run - one block on a single line. 
  
 +<code bash>
 +eval ${TMT_ROOT}/tools/format_convertors/plaintext_to_tmt/plaintext_to_tmt.pl English sample.txt
 +brunblocks -S -o --scen tutorial.scen -- sample.tmt
 +</code>
  
 +Finally, yet another way is to use a simple ''bash'' script (see ''applications/run_all.sh''):
 +
 +<code bash>
 +./run_all.sh
 +</code>
  
  
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 ===== Your turn: more tasks ===== ===== Your turn: more tasks =====
 +
  
  
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   * You can use block template in ''libs/blocks/BlockTemplate.pm''.    * You can use block template in ''libs/blocks/BlockTemplate.pm''. 
-  * To find an object to a verb, look for objects among effective children of a verb (''$child<nowiki>-></nowiki>get_attr('afun') eq 'Obj' ''). That implies working on analytical layer.+  * To find an object of a verb, look for objects among effective children of a verb (''$child<nowiki>-></nowiki>get_attr('afun') eq 'Obj' ''). That implies working on analytical layer.
   * For debugging, a method returning surface word order of a node is useful: ''$node<nowiki>-></nowiki>get_attr('ord')''. It can be used to print out nodes sorted by attribute ''ord''.   * For debugging, a method returning surface word order of a node is useful: ''$node<nowiki>-></nowiki>get_attr('ord')''. It can be used to print out nodes sorted by attribute ''ord''.
-  * Once you have node ''$object'' and node ''$verb'', use method ''$object<nowiki>-></nowiki>shift_before_node($verb)''. This method takes the whole subtree under node ''$object'' and re-counts the attributes ''ord'' (surface word order) so that all nodes in subtree under ''$object'' have smaller ''ord'' than ''$verb''. That is, the method rearranges the surface word order from VO to OV.+  * Once you have the node ''$object'' and the node ''$verb'', use the method ''$object<nowiki>-></nowiki>shift_before_node($verb)''. This method takes the whole subtree under the node ''$object'' and recalculates the attributes ''ord'' (surface word order) so that all the nodes in the subtree under ''$object'' have a smaller ''ord'' than ''$verb''. That is, the method rearranges the surface word order from VO to OV.
  
 **Advanced version**: This solution shifts object (or more objects) of a verb just in front of that verb node. So f.e.: //Mr. Brown has urged MPs.// changes to: //Mr. Brown has MPs urged.// You can try to change this solution, so the final sentence would be: //Mr. Brown MPs has urged.// You may need a method ''$node->shift_after_subtree($root_of_that_subtree)''. Subjects should have attribute '''afun' eq 'Sb'''. **Advanced version**: This solution shifts object (or more objects) of a verb just in front of that verb node. So f.e.: //Mr. Brown has urged MPs.// changes to: //Mr. Brown has MPs urged.// You can try to change this solution, so the final sentence would be: //Mr. Brown MPs has urged.// You may need a method ''$node->shift_after_subtree($root_of_that_subtree)''. Subjects should have attribute '''afun' eq 'Sb'''.
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 {{ external:tectomt:preps.png?200x80|Prepositions example}} {{ external:tectomt:preps.png?200x80|Prepositions example}}
  
-**Motivation**: In dependency approach a question "where to hang prepositions" arises. In praguian style (PDT), prepositions are heads of the subtree and the noun/pronoun is dependent on the preposition. However, another ordering might be preferable: The noun/pronoun might be the head of subtree, while the preposition would take the role of a modifier.+**Motivation**: In dependency approach the question "where to hang prepositions" arises. In the praguian style (PDT), prepositions are heads of the subtree and the noun/pronoun is dependent on the preposition. However, another ordering might be preferable: The noun/pronoun might be the head of subtree, while the preposition would take the role of a modifier.
  
 **Task**: The task is to rehang all prepositions as indicated at the picture. You may assume that prepositions have at most 1 child. **Task**: The task is to rehang all prepositions as indicated at the picture. You may assume that prepositions have at most 1 child.

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