typos, question wording improved

README.md

@@ -1,34 +1,35 @@
 # BEF-China test collection for dataset search
 
-This repository provides a test collection for dataset search in biodiversity. The test collections consists of 14 questions collected in different biodiversity research related projects and refelecting real user informations needs, a corpus of 372 datasets created in the scope of the [BEF-China project](https://bef-china.com) and human assessments evaluating which dataset is relevant for which question. 
+This repository provides a test collection for dataset search in biodiversity. The test collections consists of 14 questions collected in different biodiversity research related projects and reflecting real user informations needs, a corpus of 372 datasets created in the scope of the [BEF-China project](https://bef-china.com) and human assessments evaluating which dataset is relevant to a question. 
 
 Further information on the BEF-China project can be obtained from the website: [https://bef-china.com](https://bef-china.com).
 
 ## Data Corpus
 
 The data-portal is available under this link [https://data.botanik.uni-halle.de](https://data.botanik.uni-halle.de).
 
-Each datasets is available with the following pattern: `https://data.botanik.uni-halle.de/bef-china/datasets/<dataset-number>`, e.g., https://data.botanik.uni-halle.de/bef-china/datasets/630
+Each dataset is available with the following pattern: `https://data.botanik.uni-halle.de/bef-china/datasets/<dataset-number>`, e.g., https://data.botanik.uni-halle.de/bef-china/datasets/630
 
 ## Questions
 
 | Question Number | Question |
 | ------ | ------ |
 |Q1	|Name 3 species that occur in the shrub layer.|
 |Q2	|Find 3 plant species where root lengths (depth) have been considered.|
-|Q3	|Find 3 datasets from beeches or oaks where nitrogen content have been measured.|
+|Q3	|Find 3 datasets from oaks where nitrogen content have been measured.|
 |Q4	|Find 3 datasets where dry weights from conifers have been measured.|
 |Q5	|Which nutrients occur in soil?|
 |Q6	|Identify all parameters that are correlated to soil depth.|
-|Q7	|Which associated taxa have been found, for example, an insect and its host?|
-|Q8	|Are soil samples in BEF-China data acidic?|
+|Q7	|Which taxa associated with tree species have been found, for example, insects on host trees?|
+|Q8	|Which soil samples in BEF-China data show a low pH value?|
 |Q9	|Does tree diversity reduce competition?|
-|Q10|Does the carbon value get larger with soil depth?|
-|Q11|Is there data about the leaf area index (LAI) and in particular about diversity?|
+|Q10|Do the soil carbon concentrations increse with soil depth?|
+|Q11|Are there data about the leaf area index (LAI) and in particular in combination with diversity?|
 |Q12|How does tree height have been measured in BEF-China experiments?|
 |Q13|How does the nitrogen cycle interact with water?|
 |Q14|How significant is the role of throughfall as water input to the forest floor?|
 
+
 ## Human Assessments
 
 The human assessments are available in the provided txt file complying with the TREC benchmark data format. An entry in the txt file looks as follows: